{"id":15588,"date":"2026-04-26T17:44:08","date_gmt":"2026-04-26T11:44:08","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/identify-the-prime-number\/"},"modified":"2026-04-27T00:42:47","modified_gmt":"2026-04-26T18:42:47","slug":"identify-the-prime-number","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/identify-the-prime-number\/","title":{"rendered":"Identify The Prime Number"},"content":{"rendered":"<p>Which of the following numbers is a prime number: 15, 21, 31, 49<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>15<\/li>\n<li>21<\/li>\n<li>31<\/li>\n<li>49<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2499,2562],"subject":[1425],"education_level":[1893],"class_list":["post-15588","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-number-properties","topic-primes-and-composites","subject-mathematics","education_level-grade-5"],"mcq_note":"31 is prime because it has no divisors other than 1 and itself; 15, 21, and 49 are composite (they have other factors).","mcq_options":[{"right":"no","answer":"15"},{"right":"no","answer":"21"},{"right":"yes","answer":"31"},{"right":"no","answer":"49"}],"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":2499,"title":"Number Properties","slug":"number-properties"},{"id":2562,"title":"Primes And Composites","slug":"primes-and-composites"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/15588","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=15588"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=15588"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=15588"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=15588"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=15588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}