{"common":{"save":0,"post_id":"4893","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8844","post_id":"4893","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1eadp h\u1ee3p \u01b0\u1edbc chung c\u1ee7a: 16 và 24.<\/p>","options":["\u01afC(16,24) = {1 ; 2 ; 4 ; 6 }","\u01afC(16,24) = {1 ; 2 ; 3 ; 4 }","\u01afC(16,24) = {1 ; 2 ; 4 ; 8}"],"correct":"3","level":"1","hint":"<p>\u01af\u1edbc chung c\u1ee7a hai hay nhi\u1ec1u s\u1ed1 là \u01b0\u1edbc c\u1ee7a t\u1ea5t c\u1ea3 các s\u1ed1 \u0111ó.<\/p>","answer":"<p>\u01af(16) = {1; 2; 4; 8; 16}<\/p><p>\u01af(24) = {1; 2; 3; 4; 6; 8; 12; 24}<\/p><p>Suy ra \u01afC(16,24) = {1 ; 2 ; 4 ; 8 }<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>\u01afC(16,24) = {1 ; 2 ; 4 ; 8 }<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:00:01","option_type":"txt","len":2},{"id":"8846","post_id":"4893","mon_id":"1158113","chapter_id":"1158138","question":"<p>Tìm t\u1eadp h\u1ee3p \u01b0\u1edbc chung c\u1ee7a: 30 và 40.<\/p>","options":["\u01afC(30, 40) = {1 ; 2 ; 5 ; 10}","\u01afC(30, 40) = { 2 ; 5 ; 10} ","\u01afC(30, 40) = {1 ; 5 ; 10}"],"correct":"1","level":"1","hint":"<p>\u01af\u1edbc chung c\u1ee7a hai hay nhi\u1ec1u s\u1ed1 là \u01b0\u1edbc c\u1ee7a t\u1ea5t c\u1ea3 các s\u1ed1 \u0111ó.<\/p>","answer":"<p>\u01af(30) = {1; 2; 3; 5; 6; 10; 15; 30}<\/p><p>\u01af(40) = {1; 2; 4; 5; 8; 10; 20; 40}<\/p><p>Suy ra \u01afC(30, 40) = {1 ; 2 ; 5 ; 10}<\/p><p>V\u1eady \u0111áp án \u0111úng là <span style=\"color:#16a085;\"><strong>\u01afC(30, 40) = {1 ; 2 ; 5 ; 10}<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:04:59","option_type":"txt","len":2},{"id":"8848","post_id":"4893","mon_id":"1158113","chapter_id":"1158138","question":"<p>Phân tích s\u1ed1 <strong>72<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p>","options":["72 = 2<span class=\"math-tex\">$^3$<\/span> . 3<span class=\"math-tex\">$^2$<\/span> ","72 = 8. 3<span class=\"math-tex\">$^2$<\/span> ","72 = 2<span class=\"math-tex\">$^3$<\/span> . 9"],"correct":"1","level":"1","hint":"","answer":"<p>Phân tích s\u1ed1 <strong>72<\/strong> ra th\u1eeba s\u1ed1 nguyên t\u1ed1.<\/p><p>72 = 2<span class=\"math-tex\">$^3$<\/span> . 3<span class=\"math-tex\">$^2$<\/span> <span style=\"color:#16a085;\">\u0110úng<\/span><\/p><p>72 = 8 . 3<span class=\"math-tex\">$^2$<\/span> <span style=\"color:#e74c3c;\">Sai<\/span> vì 8 không là s\u1ed1 nguyên t\u1ed1<\/p><p>72 = 2<span class=\"math-tex\">$^3$<\/span> . 9 <span style=\"color:#e74c3c;\">Sai<\/span> vì 9 không là s\u1ed1 nguyên t\u1ed1<\/p><p>V\u1eady \u0111áp án \u0111úng là<span style=\"color:#16a085;\"><strong> 72 = 2<span class=\"math-tex\">$^3$<\/span> . 3<span class=\"math-tex\">$^2$<\/span> <\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:08:39","option_type":"math","len":0}]}