{"common":{"save":0,"post_id":"4889","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8824","post_id":"4889","mon_id":"1158113","chapter_id":"1158138","question":"<p>Phân tích s\u1ed1 <strong>150<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p>","options":["150 = 2 . 3 . 25","150 = 6 . 5<span class=\"math-tex\">$^2$<\/span> ","150 = 2 . 3 . 5<span class=\"math-tex\">$^2$<\/span>"],"correct":"3","level":"3","hint":"","answer":"<p>Phân tích s\u1ed1 <strong>150<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p><p>150 = 2 . 3 . 25 <span style=\"color:#e74c3c;\">Sai<\/span> vì 25 không là s\u1ed1 nguyên t\u1ed1<\/p><p>150 = 6 . 5<span class=\"math-tex\">$^2$<\/span> <span style=\"color:#e74c3c;\">Sai<\/span> vì 6 không là s\u1ed1 nguyên t\u1ed1<\/p><p>150 = 2 . 3 . 5<span class=\"math-tex\">$^2$<\/span> <span style=\"color:#16a085;\">\u0110úng<\/span><\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>150 = 2 . 3 . 5<span class=\"math-tex\">$^2$<\/span> <\/strong><\/span> <\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-09 12:07:43","option_type":"math","len":0},{"id":"8825","post_id":"4889","mon_id":"1158113","chapter_id":"1158138","question":"<p>Phân tích s\u1ed1 <strong>306<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p>","options":["306 = 2 . 9 . 17 ","306 = 2 . 3<span class=\"math-tex\">$^2$<\/span> . 17","306 = 3<span class=\"math-tex\">$^2$<\/span> . 34 "],"correct":"2","level":"3","hint":"","answer":"<p>Phân tích s\u1ed1 <strong>306<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p><p>306 = 2 . 9 . 17 <span style=\"color:#e74c3c;\">Sai<\/span> vì 9 không là s\u1ed1 nguyên t\u1ed1<\/p><p>306 = 2 . 3<span class=\"math-tex\">$^2$<\/span> . 17 <span style=\"color:#16a085;\">\u0110úng<\/span><\/p><p>306 = 3<span class=\"math-tex\">$^2$<\/span> . 34 <span style=\"color:#e74c3c;\">Sai<\/span> vì 34 không là s\u1ed1 nguyên t\u1ed1<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>306 = 2 . 3<span class=\"math-tex\">$^2$<\/span> . 17<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-09 12:12:11","option_type":"math","len":0},{"id":"8827","post_id":"4889","mon_id":"1158113","chapter_id":"1158138","question":"<p>Li\u1ec7t kê t\u1eadp h\u1ee3p M g\u1ed3m các \u01b0\u1edbc nguyên t\u1ed1 c\u1ee7a 630.<\/p>","options":["M = {2 ; 3 ; 5 ; 7}","M = {1 ; 2 ; 3 ; 5 ; 7}","M = {2 ; 3 ; 5 ; 10}"],"correct":"1","level":"3","hint":"<p>Phân tích 630 ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p>","answer":"<p>Ta có: 630 = 2 . 3<span class=\"math-tex\">$^2$<\/span> . 5 . 7<\/p><p>Suy ra t\u1eadp M g\u1ed3m các \u01b0\u1edbc nguyên t\u1ed1 c\u1ee7a 630 là M = {2 ; 3 ; 5 ; 7}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong> M = {2 ; 3 ; 5 ; 7}<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-09 12:16:56","option_type":"txt","len":2}]}
