{"id":270924,"date":"2025-07-25T12:25:08","date_gmt":"2025-07-25T12:25:08","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=270924"},"modified":"2025-07-25T12:25:11","modified_gmt":"2025-07-25T12:25:11","slug":"find-the-gcf-greatest-common-factor-of-18-and-11","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/25\/find-the-gcf-greatest-common-factor-of-18-and-11\/","title":{"rendered":"Find the GCF (greatest common factor) of 18 and 11."},"content":{"rendered":"\n<p>Find the GCF (greatest common factor) of 18 and 11.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The greatest common factor (GCF) of two numbers is the largest number that divides both of them exactly without leaving a remainder.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 1: List the factors of 18 and 11<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Factors of 18:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1, 2, 3, 6, 9, 18<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Factors of 11:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1, 11<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Step 2: Identify the common factors<\/h3>\n\n\n\n<p>Looking at the factors of both 18 and 11, we see that the only common factor is <strong>1<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Step 3: Conclusion<\/h3>\n\n\n\n<p>Since 1 is the only common factor, the GCF of 18 and 11 is <strong>1<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The GCF is a key concept in number theory and is used in simplifying fractions, solving problems related to divisibility, and finding the simplest form of a ratio. In this case, since 18 and 11 are relatively prime (i.e., they do not share any other common factors except 1), their greatest common factor is 1.<\/p>\n\n\n\n<p>This process involves understanding that when two numbers have no other common factors besides 1, they are termed &#8220;coprime.&#8221; For any pair of coprime numbers, the GCF will always be 1. This fact is fundamental to many areas of mathematics, particularly when dealing with prime numbers and simplifying fractions.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-2006.jpeg\" alt=\"\" class=\"wp-image-270925\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Find the GCF (greatest common factor) of 18 and 11. The Correct Answer and Explanation is: The greatest common factor (GCF) of two numbers is the largest number that divides both of them exactly without leaving a remainder. Step 1: List the factors of 18 and 11 Factors of 18: Factors of 11: Step 2: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-270924","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/270924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=270924"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/270924\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=270924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=270924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=270924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}