{"id":16383,"date":"2026-04-29T21:14:56","date_gmt":"2026-04-29T15:14:56","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/highest-common-factor-gcf-calculation\/"},"modified":"2026-04-29T21:14:56","modified_gmt":"2026-04-29T15:14:56","slug":"highest-common-factor-gcf-calculation","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/highest-common-factor-gcf-calculation\/","title":{"rendered":"Highest Common Factor (GCF) Calculation"},"content":{"rendered":"<p>Find the highest common factor (HCF\/GCF) of 84 and 126.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>21<\/li>\n<li>42<\/li>\n<li>14<\/li>\n<li>7<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2523,2625],"subject":[1425],"education_level":[1894,1895],"class_list":["post-16383","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-factors-and-multiples","topic-greatest-common-divisor","subject-mathematics","education_level-grade-8","education_level-ssc"],"mcq_note":"Prime-factorize: 84 = 2^2\u00d73\u00d77 and 126 = 2\u00d73^2\u00d77; common factors multiply to 2\u00d73\u00d77 = 42, so GCF = 42.","mcq_options":[{"right":"no","answer":"21"},{"right":"yes","answer":"42"},{"right":"no","answer":"14"},{"right":"no","answer":"7"}],"multi_answers":"no","subject_terms":[{"id":1425,"title":"Mathematics","slug":"mathematics"}],"topic_terms":[{"id":2489,"title":"Arithmetic &amp; Number System","slug":"arithmetic-number-system"},{"id":2523,"title":"Factors And Multiples","slug":"factors-and-multiples"},{"id":2625,"title":"Greatest Common Divisor","slug":"greatest-common-divisor"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/16383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=16383"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=16383"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=16383"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=16383"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=16383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}