{"common":{"save":0,"post_id":"4894","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"8860","post_id":"4894","mon_id":"1158113","chapter_id":"1158138","question":"<p>\u01af\u1edbc chung l\u1edbn nh\u1ea5t c\u1ee7a 50 v&agrave; 60 l&agrave; :<\/p>","options":["2","5","10"],"correct":"3","level":"2","hint":"","answer":"<p>Ta c&oacute;:<\/p><p>50 = 2 . 5<span class=\"math-tex\">$^2$<\/span>&nbsp;<\/p><p>60 = 2<span class=\"math-tex\">$^2$<\/span> . 3 .&nbsp;5&nbsp;<\/p><p>Suy ra \u01afCLN(50, 60) =&nbsp;2 . 5&nbsp;= 10<\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>10<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:35:57","option_type":"txt","len":0},{"id":"8862","post_id":"4894","mon_id":"1158113","chapter_id":"1158138","question":"<p>\u01af\u1edbc chung l\u1edbn nh\u1ea5t c\u1ee7a 90 v&agrave; 120 l&agrave; :<\/p>","options":["30","10","20"],"correct":"1","level":"2","hint":"","answer":"<p>Ta c&oacute;:<\/p><p>90 = 2 . 3<span class=\"math-tex\">$^2$<\/span>&nbsp;. 5<\/p><p>120 = 2<span class=\"math-tex\">$^3$<\/span> . 3&nbsp;. 5&nbsp;<\/p><p>Suy ra \u01afCLN(90, 120) =&nbsp;2 . 3 . 5&nbsp;= 30<\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>30<\/strong><\/span><\/p>","type":"choose","extra_type":"star","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:38:50","option_type":"txt","len":0},{"id":"8863","post_id":"4894","mon_id":"1158113","chapter_id":"1158138","question":"<p>\u01af\u1edbc chung l\u1edbn nh\u1ea5t c\u1ee7a 100 v&agrave; 120 l&agrave; :<\/p>","options":["10","20","30"],"correct":"2","level":"2","hint":"","answer":"<p>Ta c&oacute;:<\/p><p>100 = 2<span class=\"math-tex\">$^2$<\/span> .&nbsp;5<span class=\"math-tex\">$^2$<\/span><\/p><p>120 = 2<span class=\"math-tex\">$^3$<\/span>&nbsp;. 3&nbsp;. 5&nbsp;<\/p><p>Suy ra \u01afCLN(100, 120) =&nbsp;2<span class=\"math-tex\">$^2$<\/span>. 5&nbsp;= 20<\/p><p>V\u1eady \u0111&aacute;p &aacute;n \u0111&uacute;ng l&agrave;&nbsp;&nbsp;<span style=\"color:#16a085;\"><strong>20<\/strong><\/span><\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"132","test":"1","date":"2021-10-09 13:41:01","option_type":"txt","len":0}]}