{"id":16541,"date":"2026-04-30T03:09:43","date_gmt":"2026-04-29T21:09:43","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/greatest-common-divisor-8\/"},"modified":"2026-04-30T03:09:43","modified_gmt":"2026-04-29T21:09:43","slug":"greatest-common-divisor-8","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/greatest-common-divisor-8\/","title":{"rendered":"Greatest Common Divisor"},"content":{"rendered":"<p>Calculate the greatest common divisor (GCD) 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>84<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2502,2670],"subject":[1425],"education_level":[1894,1895],"class_list":["post-16541","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-factors","topic-gcd-lcm","subject-mathematics","education_level-grade-8","education_level-ssc"],"mcq_note":"Prime factorize or use Euclidean algorithm: 84=2^2\u00b73\u00b77 and 126=2\u00b73^2\u00b77, common factors multiply to 2\u00b73\u00b77 = 42, so GCD = 42.","mcq_options":[{"right":"no","answer":"21"},{"right":"yes","answer":"42"},{"right":"no","answer":"14"},{"right":"no","answer":"84"}],"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":2502,"title":"Factors","slug":"factors"},{"id":2670,"title":"GCD &amp; LCM","slug":"gcd-lcm"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/16541","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=16541"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=16541"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=16541"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=16541"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=16541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}