{"id":16666,"date":"2026-05-01T23:28:39","date_gmt":"2026-05-01T17:28:39","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/hcf-of-84-126-and-210\/"},"modified":"2026-05-01T23:28:39","modified_gmt":"2026-05-01T17:28:39","slug":"hcf-of-84-126-and-210","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/hcf-of-84-126-and-210\/","title":{"rendered":"HCF Of 84, 126 And 210"},"content":{"rendered":"<p>Calculate the highest common factor (HCF) of 84, 126, and 210.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>42<\/li>\n<li>14<\/li>\n<li>21<\/li>\n<li>7<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2513],"subject":[1425],"education_level":[1896],"class_list":["post-16666","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-lcm-and-hcf","subject-mathematics","education_level-hsc"],"mcq_note":"Prime factors: 84 = 2^2\u00b73\u00b77, 126 = 2\u00b73^2\u00b77, 210 = 2\u00b73\u00b75\u00b77; common factors are 2\u00b73\u00b77 = 42, the HCF.","mcq_options":[{"right":"yes","answer":"42"},{"right":"no","answer":"14"},{"right":"no","answer":"21"},{"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":2513,"title":"LCM and HCF","slug":"lcm-and-hcf"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/16666","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=16666"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=16666"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=16666"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=16666"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=16666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}