{"id":17279,"date":"2026-05-02T03:42:15","date_gmt":"2026-05-01T21:42:15","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/mixed-units-digit-problem-257\/"},"modified":"2026-05-02T03:42:15","modified_gmt":"2026-05-01T21:42:15","slug":"mixed-units-digit-problem-257","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/mixed-units-digit-problem-257\/","title":{"rendered":"Mixed Units Digit Problem 257"},"content":{"rendered":"<p>What is the units digit of 13^498?<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>3<\/li>\n<li>7<\/li>\n<li>9<\/li>\n<li>1<\/li>\n<li>5<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2489,2642,2699],"subject":[1425],"education_level":[1896],"class_list":["post-17279","mcq","type-mcq","status-publish","hentry","topic-arithmetic-number-system","topic-digits","topic-powers","subject-mathematics","education_level-hsc"],"mcq_note":"The units digit repeats cyclically; using exponent 498 in the cycle gives 9.","mcq_options":[{"right":"no","answer":"3"},{"right":"no","answer":"7"},{"right":"yes","answer":"9"},{"right":"no","answer":"1"},{"right":"no","answer":"5"}],"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":2642,"title":"Digits","slug":"digits"},{"id":2699,"title":"Powers","slug":"powers"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/17279","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=17279"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=17279"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=17279"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=17279"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=17279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}