{"id":269801,"date":"2025-07-24T19:50:10","date_gmt":"2025-07-24T19:50:10","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=269801"},"modified":"2025-07-24T19:50:15","modified_gmt":"2025-07-24T19:50:15","slug":"write-down-all-the-composite-numbers-less-than-20","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/24\/write-down-all-the-composite-numbers-less-than-20\/","title":{"rendered":"Write down all the composite numbers less than 20"},"content":{"rendered":"\n<p>Write down all the composite numbers less than 20.<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The composite numbers less than 20 are:<\/p>\n\n\n\n<p>4, 6, 8, 9, 10, 12, 14, 15, 16, 18.<\/p>\n\n\n\n<p>A composite number is a positive integer greater than 1 that has more than two distinct positive divisors. This means that in addition to being divisible by 1 and itself, a composite number is divisible by at least one other number. To distinguish between prime and composite numbers, prime numbers have exactly two distinct positive divisors: 1 and the number itself.<\/p>\n\n\n\n<p>For example:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>4 is divisible by 1, 2, and 4, making it composite.<\/li>\n\n\n\n<li>6 is divisible by 1, 2, 3, and 6, which also makes it composite.<\/li>\n\n\n\n<li>8 is divisible by 1, 2, 4, and 8, so it is composite.<\/li>\n\n\n\n<li>9 is divisible by 1, 3, and 9, making it composite.<\/li>\n\n\n\n<li>10 has divisors 1, 2, 5, and 10, so it is composite.<\/li>\n\n\n\n<li>12 is divisible by 1, 2, 3, 4, 6, and 12, indicating that it is composite.<\/li>\n\n\n\n<li>14 is divisible by 1, 2, 7, and 14, which classifies it as a composite number.<\/li>\n\n\n\n<li>15 has divisors 1, 3, 5, and 15, making it composite.<\/li>\n\n\n\n<li>16 is divisible by 1, 2, 4, 8, and 16, so it is composite.<\/li>\n\n\n\n<li>18 is divisible by 1, 2, 3, 6, 9, and 18, making it composite.<\/li>\n<\/ul>\n\n\n\n<p>On the other hand, the numbers 2, 3, 5, 7, 11, 13, 17, and 19 are prime because they only have two divisors: 1 and themselves. Therefore, all numbers that are not prime and greater than 1 are composite.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Write down all the composite numbers less than 20. The correct answer and explanation is: The composite numbers less than 20 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18. A composite number is a positive integer greater than 1 that has more than two distinct positive divisors. This means that in addition [&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-269801","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/269801","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=269801"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/269801\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=269801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=269801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=269801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}