{"id":2503,"date":"2021-10-04T03:42:13","date_gmt":"2021-10-04T03:42:13","guid":{"rendered":"http:\/\/stgwebsite.mindspark.in\/wordpress\/?page_id=2503"},"modified":"2022-01-02T07:19:47","modified_gmt":"2022-01-02T07:19:47","slug":"cube-root-of-729-by-prime-factorisation-method","status":"publish","type":"page","link":"https:\/\/stgwebsite.mindspark.in\/studymaterial\/math-concepts\/cube-root-of-729-by-prime-factorisation-method\/","title":{"rendered":"Cube root of 729 by prime factorisation method"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; admin_label=&#8221;Section&#8221; module_class=&#8221;mainsec&#8221; _builder_version=&#8221;4.10.4&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#e0f2fd&#8221; z_index=&#8221;1&#8243; custom_padding=&#8221;5px||5px||true|false&#8221; locked=&#8221;off&#8221; collapsed=&#8221;off&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;3_5,2_5&#8243; custom_padding_last_edited=&#8221;on|phone&#8221; _builder_version=&#8221;4.10.6&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; width=&#8221;100%&#8221; max_width=&#8221;1310px&#8221; custom_padding=&#8221;|51px|40px|51px|false|true&#8221; custom_padding_tablet=&#8221;&#8221; custom_padding_phone=&#8221;|40px|30px|40px|false|true&#8221; border_radii=&#8221;on|10px|10px|10px|10px&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;3_5&#8243; admin_label=&#8221;Column L&#8221; _builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text admin_label=&#8221;Acute Angles<br \/>\n&#8221; _builder_version=&#8221;4.10.8&#8243; _module_preset=&#8221;default&#8221; header_font=&#8221;|700|||||||&#8221; header_text_align=&#8221;left&#8221; header_font_size=&#8221;50px&#8221; header_line_height=&#8221;1.18em&#8221; custom_padding=&#8221;|0px||4px|false|false&#8221; header_font_size_tablet=&#8221;&#8221; header_font_size_phone=&#8221;35px&#8221; header_font_size_last_edited=&#8221;on|phone&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1><strong>Cube root of 729 by prime factorisation method<\/strong><\/h1>\n<p>[\/et_pb_text][et_pb_text admin_label=&#8221;Text&#8221; _builder_version=&#8221;4.11.3&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; header_2_font=&#8221;|600|||||||&#8221; header_2_text_color=&#8221;#a01414&#8243; header_3_font=&#8221;|600|||||||&#8221; header_3_text_color=&#8221;#7F7F7F&#8221; custom_padding=&#8221;15px|15px||4px|false|false&#8221; global_colors_info=&#8221;{}&#8221;]<span style=\"font-weight: 400;\">When we multiply a number three times by itself, the product is the cube of that number. The number is the cube root of the product. This means that the cube root is the inverse of the cube. The radical symbol of the cube root is \u221b. So, In this article, we will discuss the cube root of 729 and the prime factorisation method to find its cube root.<\/span><\/p>\n<h2><strong>CUBE ROOT OF 729<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">The cube root of 729 is 9. It means that the product of 9 thrice by itself yields the number 729.\u00a0<\/span><\/p>\n<h3><strong>How to find the cube root?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">To find the cube root of a number, we can use the prime factorisation method. By evaluating the prime factors we will make the groups of threes of the same digits and then we apply the cube root and we get the cube root of the required number. This is the easiest method to find the cube root of any number.<\/span><\/p>\n<h3><strong>How to calculate the cube root of 729?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">The prime factors of 729 are 3\u00d73\u00d73\u00d73\u00d73\u00d73.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The groups of threes of the same values =<\/span><\/p>\n<p>3<sup style=\"font-size: 10px;\">3<\/sup><span style=\"font-weight: 400;\">\u00d7<\/span>\u00a03<sup style=\"font-size: 10px;\">3<\/sup><span style=\"font-weight: 400;\"> = (3\u00d73)<sup style=\"font-size: 10px;\">3<\/sup><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Therefore, the cube root of 729 by prime factorization is \u221b(3\u00d73)<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> =\u00a0 \u221b9<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0which is equal to 9.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Illustration<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Q1. a<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\"> + 386 = 9<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">, find the value of a.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sol. We know that the value of 9<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0is equal to 729.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"font-weight: 400;\"> \u00a0So,\u00a0 a<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0+ 386 = 729<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 a<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0= 729 &#8211; 386<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 a<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0= 343<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b343<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b(7\u00d77\u00d77)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b7<\/span><span style=\"font-weight: 400;\"><sup style=\"font-size: 10px;\">3<\/sup><\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = 7.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0Thus, the value of a is equal to 7.<\/span>[\/et_pb_text][et_pb_text disabled_on=&#8221;on|on|on&#8221; admin_label=&#8221;Sample Questions<br \/>\n&#8221; _builder_version=&#8221;4.10.8&#8243; _module_preset=&#8221;default&#8221; header_font=&#8221;|700|||||||&#8221; header_font_size=&#8221;28px&#8221; custom_padding=&#8221;|0px||4px|false|false&#8221; disabled=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1>Practice Multiple Choice Questions<\/h1>\n<p>[\/et_pb_text][et_pb_text disabled_on=&#8221;on|on|on&#8221; admin_label=&#8221;Question 1&#8243; _builder_version=&#8221;4.10.8&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#FFFFFF&#8221; custom_padding=&#8221;25px|25px|25px|25px|true|true&#8221; border_radii=&#8221;on|15px|15px|15px|15px&#8221; border_width_all=&#8221;2px&#8221; border_color_all=&#8221;#000000&#8243; border_width_top=&#8221;4px&#8221; border_color_top=&#8221;#E02B20&#8243; disabled=&#8221;on&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"qmanage\">\n<div class=\"qq\">\n<p><strong>Questions<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Q1. a<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> + 386 = 9<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\">, find the value of a.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Sol. We know that the value of 9<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> is equal to 729.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span style=\"font-weight: 400;\">\u00a0\u00a0So,\u00a0 a<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> + 386 = 729<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> = 729 &#8211; 386<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> = 343<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b343<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b(7\u00d77\u00d77)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = \u221b7<\/span><span style=\"font-weight: 400;\">3<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0a = 7.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0\u00a0\u00a0\u00a0Thus, the value of a is equal to 7.<\/span><\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;2_5&#8243; 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_builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; text_orientation=&#8221;center&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<div class=\"ffmanage\">\n<div class=\"textmanagestyle\">\n<div class=\"fone\">\n<p>Ready to get started ?<\/p>\n<\/div>\n<div class=\"sone\">\n<p class=\"ffbtn\"><a href=\"https:\/\/mindspark.in\/free-trial\">Start Free Trial<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][et_pb_image src=&#8221;http:\/\/stgwebsite.mindspark.in\/wordpress\/wp-content\/uploads\/2021\/08\/down-circle.png&#8221; title_text=&#8221;down-circle&#8221; show_bottom_space=&#8221;off&#8221; align=&#8221;right&#8221; module_class=&#8221;img2&#8243; _builder_version=&#8221;4.9.10&#8243; _module_preset=&#8221;default&#8221; width=&#8221;44px&#8221; height=&#8221;18px&#8221; custom_padding=&#8221;2px||2px||true|false&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][et_pb_row admin_label=&#8221;FAQ Row&#8221; _builder_version=&#8221;4.9.11&#8243; _module_preset=&#8221;default&#8221; width=&#8221;100%&#8221; max_width=&#8221;1310px&#8221; custom_padding=&#8221;|40px||40px|false|true&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.9.11&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text admin_label=&#8221;FAQ&#8221; module_class=&#8221;faqstyl&#8221; _builder_version=&#8221;4.11.3&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;16px&#8221; header_font=&#8221;|700|||||||&#8221; header_text_align=&#8221;center&#8221; header_line_height=&#8221;2.5em&#8221; background_color=&#8221;#dbedc6&#8243; max_width=&#8221;80%&#8221; module_alignment=&#8221;center&#8221; custom_margin=&#8221;||||false|false&#8221; custom_padding=&#8221;30px|25px|30px|25px|true|true&#8221; border_radii=&#8221;on|10px|10px|10px|10px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1>Frequently Asked Questions<\/h1>\n<p><span style=\"font-weight: 400;\"><strong>Q1<\/strong>. Is 729 both the cube as well as square?<\/span><br \/>\n<span style=\"font-weight: 400;\"><strong>Ans.<\/strong> The prime factors of 729 are 3\u00d73\u00d73\u00d73\u00d73\u00d73, to find the square root, we will make the groups of twos of the same values. So, the groups = 3<sup style=\"font-size: 10px;\">2<\/sup><\/span><span style=\"font-weight: 400;\">\u00d73<sup style=\"font-size: 10px;\">2<\/sup><\/span><span style=\"font-weight: 400;\">\u00d73<sup style=\"font-size: 10px;\">2<\/sup><\/span><span style=\"font-weight: 400;\">= (3\u00d73\u00d73)<sup style=\"font-size: 10px;\">2<\/sup><\/span><span style=\"font-weight: 400;\">, when we apply the square root, we get the number 27. We already know that the cube root of 729 is 9. So, 729 is the cube of 9 and the square of 27.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><strong>Q2.<\/strong> Is 729 a perfect cube?<\/span><br \/>\n<span style=\"font-weight: 400;\"><strong>Ans.<\/strong> When we combine the prime factors of 729 in groups of threes, we get 3<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\"> \u00d7 3<sup style=\"font-size: 10px;\">3<\/sup><\/span><span style=\"font-weight: 400;\">\u00a0to which if we apply cube root, we get, 9. Hence, 729 is a perfect cube.<\/span><\/p>\n<p><span style=\"font-weight: 400;\"><strong>Q3.<\/strong> What is the cube root of 729?<\/span><br \/>\n<span style=\"font-weight: 400;\"><strong>Ans<\/strong> The cube root of 729 is equal to 9. It means that when we multiply 9 thrice by itself, it will yield the product 729.<\/span>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We will use the prime factorization method to get the cube root of 729.<br \/>\n The prime factors of 729 = \u221b(3\u00d73)3 =  \u221b93, which is equal to 9.<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":714,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Cube root of 729 by prime factorisation method - mydomain<\/title>\n<meta name=\"description\" content=\"We will use the prime factorization method to get the cube root of 729. 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