{"common":{"save":0,"post_id":"4870","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8634","post_id":"4870","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1ea5t c\u1ea3 các \u01b0\u1edbc c\u1ee7a 18.<\/p>","options":["1 ; 2 ; 3 ; 6 ; 18","2 ; 3 ; 6 ; 9 ; 18","1 ; 2 ; 3 ; 6 ; 9 ; 18"],"correct":"3","level":"2","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 18 cho các s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 18, ta th\u1ea5y 18 chia h\u1ebft cho 1 ; 2 ; 3 ; 6 ; 9 ; 18 nên <\/p><p>\u01af(18) = {1 ; 2 ; 3 ; 6 ; 9 ; 18}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>1 ; 2 ; 3 ; 6 ; 9 ; 18<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-07 02:19:03","option_type":"txt","len":2},{"id":"8635","post_id":"4870","mon_id":"1158113","chapter_id":"1158138","question":"<p>T\u1eadp t\u1ea5t c\u1ea3 các \u01b0\u1edbc c\u1ee7a 26 <strong>có bao nhiêu<\/strong> ph\u1ea7n t\u1eed ?<\/p>","options":["1","4 ","3"],"correct":"2","level":"2","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 26 cho các s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 26, ta th\u1ea5y 26 chia h\u1ebft cho 1 ; 2 ; 13 ; 26 nên <\/p><p>\u01af(26) = {1 ; 2 ; 13 ; 26}<\/p><p><strong>T\u1eadp \u01af(26) có 4 ph\u1ea7n t\u1eed.<\/strong><\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>4<\/strong><\/span><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"1","date":"2021-10-07 02:22:28","option_type":"txt","len":0},{"id":"8637","post_id":"4870","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1ea5t c\u1ea3 các \u01b0\u1edbc c\u1ee7a 20.<\/p>","options":["1 ; 2 ; 4 ; 5 ; 10 ","1 ; 2 ; 4 ; 5 ; 10 ; 20","2 ; 4 ; 5 ; 10 ; 20"],"correct":"2","level":"2","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 20 cho các s\u1ed1 t\u1eeb 1 \u0111\u1ebfn 20, ta th\u1ea5y 20 chia h\u1ebft cho 1 ; 2 ; 4 ; 5 ; 10 ; 20 nên <\/p><p>\u01af(20) = {1 ; 2 ; 4 ; 5 ; 10 ; 20}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>1 ; 2 ; 4 ; 5 ; 10 ; 20<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-07 02:27:50","option_type":"txt","len":2}]}
