{"common":{"save":0,"post_id":"4869","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8618","post_id":"4869","mon_id":"1158113","chapter_id":"1158138","question":"<p>\u01af\u1edbc c\u1ee7a 56 là s\u1ed1 nào sau \u0111ây?<\/p>","options":["7","3","1","9"],"correct":"[\"1\",\"3\"]","level":"1","hint":"<p>N\u1ebfu a chia h\u1ebft cho b thì a \u0111\u01b0\u1ee3c g\u1ecdi là b\u1ed9i c\u1ee7a b và b là \u01b0\u1edbc c\u1ee7a a.<\/p><p>Ki\u1ec3m tra xem 56 chia h\u1ebft cho s\u1ed1 nào thì s\u1ed1 \u0111ó là \u01b0\u1edbc c\u1ee7a 56.<\/p>","answer":"<p>Các \u01b0\u1edbc c\u1ee7a 56 là: <span style=\"color:#16a085;\"><strong>1<\/strong><\/span>, 2, 4, <span style=\"color:#16a085;\"><strong>7<\/strong><\/span>, 8, 14, 28, 56<\/p><p>V\u1eady các \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>1 <\/strong><\/span>;<span style=\"color:#16a085;\"><strong> 7<\/strong><\/span><\/p>","type":"checkbox","extra_type":"balloon","time":"0","user_id":"132","test":"1","date":"2021-10-06 15:14:37","option_type":"txt","len":0},{"id":"8619","post_id":"4869","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1ea5t c\u1ea3 các \u01b0\u1edbc c\u1ee7a 34.<\/p>","options":["1 ; 2 ; 17","2 ; 17","1 ; 2 ; 17 ; 34"],"correct":"3","level":"1","hint":"<p>Mu\u1ed1n tìm các \u01b0\u1edbc c\u1ee7a a (a > 1), ta l\u1ea7n l\u01b0\u1ee3t chia a cho các s\u1ed1 t\u1ef1 nhiên t\u1eeb 1 \u0111\u1ebfn a \u0111\u1ec3 xem a chia h\u1ebft cho nh\u1eefng s\u1ed1 nào thì các s\u1ed1 \u0111ó là \u01b0\u1edbc c\u1ee7a a.<\/p>","answer":"<p>L\u1ea7n l\u01b0\u1ee3t chia 34 cho các s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 34, ta th\u1ea5y 34 chia h\u1ebft cho 1 ; 2 ; 17 ; 34 nên <\/p><p>\u01af(34) = {1 ; 2 ; 17 ; 34}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>1 ; 2 ; 17 ; 34<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-06 15:17:28","option_type":"txt","len":1},{"id":"8621","post_id":"4869","mon_id":"1158113","chapter_id":"1158138","question":"<p>100 <strong>không chia h\u1ebft<\/strong> cho s\u1ed1 nào sau \u0111ây?<\/p>","options":["10","3","25","100"],"correct":"2","level":"1","hint":"<p>Cho hai s\u1ed1 t\u1ef1 nhiên a và b (b<span class=\"math-tex\">$\\ne$<\/span>0).<\/p><p>N\u1ebfu có s\u1ed1 t\u1ef1 nhiên k sao cho a = k . b thì ta nói a chia h\u1ebft cho b và ta g\u1ecdi a là b\u1ed9i c\u1ee7a b, còn b là \u01b0\u1edbc c\u1ee7a a.<\/p>","answer":"<p>Ta có:<\/p><p>100 = 10 . 10 nên 100 chia h\u1ebft cho 10<\/p><p>100 = 25 . 4 nên 100 chia h\u1ebft cho 25<\/p><p>100 = 100 . 1 nên 100 chia h\u1ebft cho 100<\/p><p>100 : 3 = 33 (d\u01b0 1) nên <strong>100 không chia h\u1ebft cho 3<\/strong><\/p><p>V\u1eady \u0111áp án \u0111úng là<strong> <span style=\"color:#16a085;\">3<\/span><\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-06 15:23:21","option_type":"number","len":0}]}
