1. Soi C\u1ea7u 3 C\u00e0ng Theo B\u00f3ng C\u1ee7a T\u1ed5ng \u0110\u1ec1<\/span><\/h3>\nTrong d\u00e2n gian \u0111\u00e3 l\u01b0u truy\u1ec1n quy t\u1eafc soi c\u1ea7u 3 c\u00e0ng, song th\u1ee7 3 c\u00e0ng theo b\u00f3ng d\u01b0\u01a1ng ho\u1eb7c \u00e2m c\u1ee7a t\u1ed5ng \u0111\u1ec1. Gi\u1ea3i th\u00edch v\u1ec1 b\u00f3ng \u00e2m d\u01b0\u01a1ng:<\/span><\/p>\n\n- Trong ng\u0169 h\u00e0nh chia: Th\u1ee7y t\u01b0\u01a1ng \u1ee9ng v\u1edbi 1, Kim t\u01b0\u01a1ng \u1ee9ng v\u1edbi 2, H\u1ecfa t\u01b0\u01a1ng \u1ee9ng v\u1edbi 3, Th\u1ed5 t\u01b0\u01a1ng \u1ee9ng v\u1edbi 4, M\u1ed9c t\u01b0\u01a1ng \u1ee9ng v\u1edbi 5.<\/span><\/li>\n
- B\u00f3ng d\u01b0\u01a1ng c\u00f3 : 1 th\u00ec b\u00f3ng l\u00e0 6, 2 th\u00ec b\u00f3ng l\u00e0 7, 3 b\u00f3ng l\u00e0 8, 4 th\u00ec b\u00f3ng l\u00e0 9, 5 th\u00ec b\u00f3ng l\u00e0 0.<\/span><\/li>\n
- B\u00f3ng \u00e2m c\u00f3: 1 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 4, 2 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 9, 3 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 6, 5 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 8, 0 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 7.<\/span><\/li>\n<\/ul>\n
C\u00e1ch gh\u00e9p nh\u01b0 sau: b\u1ea1n ch\u1ecdn b\u1ea1ch th\u1ee7 l\u00e0 28 th\u00ec t\u1ed5ng l\u00e0 10 ngh\u0129a l\u00e0 0. N\u1ebfu \u0111\u00e1nh theo b\u00f3ng d\u01b0\u01a1ng th\u00ec \u0111\u1ed1i chi\u1ebfu 0 l\u00e0 b\u00f3ng c\u1ee7a 5 \u0111\u00e1nh ba c\u00e0ng 528 ho\u1eb7c 285. N\u1ebfu soi theo b\u00f3ng \u00e2m th\u00ec \u0111\u1ed1i chi\u1ebfu 0 c\u00f3 b\u00f3ng l\u00e0 7 th\u00ec \u0111\u00e1nh c\u1ea7u b\u1ea1ch th\u1ee7 3 c\u00e0ng ho\u1eb7c song th\u1ee7 3 c\u00e0ng 728 ho\u1eb7c 287.<\/span><\/p>\nNgo\u00e0i ra c\u00f2n c\u00f3 c\u00e1ch gh\u00e9p k\u1ebft qu\u1ea3 gi\u1ea3i b\u1ea3y v\u1edbi m\u1ed9t s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. V\u00ed d\u1ee5 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 79645. Gi\u1ea3i 7 l\u00e0 15, 83, 46, 02 th\u00ec ch\u1ecdn b\u1ea5t k\u1ef3 c\u00f3 th\u1ec3 l\u00e0 83 v\u1edbi 1 s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t.<\/span><\/p>\n2. C\u00e1ch Soi C\u1ea7u 3 C\u00e0ng Theo Ng\u00e0y Trong Tu\u1ea7n<\/span><\/h3>\n<\/p>\n
C\u00e1ch n\u00e0y ngh\u0129a l\u00e0 b\u1ea1n soi \u0111\u01b0\u1ee3c con \u0111\u1ec1 \u01b0ng \u00fd nh\u1ea5t. Ho\u1eb7c n\u1eafm ch\u1eafc con b\u1ea1ch th\u1ee7 th\u00ec n\u00ean \u0111\u00e1nh theo gh\u00e9p th\u00eam v\u1edbi th\u1ee9 c\u1ee7a ng\u00e0y h\u00f4m \u0111\u00f3. V\u00ed d\u1ee5 b\u1ea1n c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u00e1nh b\u1ea1ch th\u1ee7 78 ng\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 ng\u00e0y th\u1ee9 3 th\u00ec c\u00f3 th\u1ec3 \u0111\u00e1nh c\u1eb7p Song Th\u1ee7 3 c\u00e0ng nh\u01b0 sau: 783 ho\u1eb7c 378.<\/span><\/p>\n3. C\u00e1ch Soi C\u1ea7u 3 C\u00e0ng Theo L\u1ecbch Ch\u1eb5n L\u1ebb<\/span><\/h3>\nNg\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 ng\u00e0y ch\u1eb5n ho\u1eb7c l\u1ebb. Sau khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh th\u00ec ti\u1ebfp theo b\u1ea1n gh\u00e9p v\u00e0o con b\u1ea1ch th\u1ee7 \u0111\u1ec1 m\u00e0 b\u1ea1n ch\u1ecdn tr\u01b0\u1edbc. V\u00ed d\u1ee5 h\u00f4m nay l\u00e0 25, \u0111\u1ecbnh \u0111\u00e1nh b\u1ea1ch th\u1ee7 15 th\u00ec b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u 3 c\u00e0ng l\u00e0 515 hay 155.<\/span><\/p>\n<\/div>\n<\/article>\n
- \n
- Trong ng\u0169 h\u00e0nh chia: Th\u1ee7y t\u01b0\u01a1ng \u1ee9ng v\u1edbi 1, Kim t\u01b0\u01a1ng \u1ee9ng v\u1edbi 2, H\u1ecfa t\u01b0\u01a1ng \u1ee9ng v\u1edbi 3, Th\u1ed5 t\u01b0\u01a1ng \u1ee9ng v\u1edbi 4, M\u1ed9c t\u01b0\u01a1ng \u1ee9ng v\u1edbi 5.<\/span><\/li>\n
- B\u00f3ng d\u01b0\u01a1ng c\u00f3 : 1 th\u00ec b\u00f3ng l\u00e0 6, 2 th\u00ec b\u00f3ng l\u00e0 7, 3 b\u00f3ng l\u00e0 8, 4 th\u00ec b\u00f3ng l\u00e0 9, 5 th\u00ec b\u00f3ng l\u00e0 0.<\/span><\/li>\n
- B\u00f3ng \u00e2m c\u00f3: 1 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 4, 2 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 9, 3 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 6, 5 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 8, 0 th\u00ec t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f3ng l\u00e0 7.<\/span><\/li>\n<\/ul>\n
C\u00e1ch gh\u00e9p nh\u01b0 sau: b\u1ea1n ch\u1ecdn b\u1ea1ch th\u1ee7 l\u00e0 28 th\u00ec t\u1ed5ng l\u00e0 10 ngh\u0129a l\u00e0 0. N\u1ebfu \u0111\u00e1nh theo b\u00f3ng d\u01b0\u01a1ng th\u00ec \u0111\u1ed1i chi\u1ebfu 0 l\u00e0 b\u00f3ng c\u1ee7a 5 \u0111\u00e1nh ba c\u00e0ng 528 ho\u1eb7c 285. N\u1ebfu soi theo b\u00f3ng \u00e2m th\u00ec \u0111\u1ed1i chi\u1ebfu 0 c\u00f3 b\u00f3ng l\u00e0 7 th\u00ec \u0111\u00e1nh c\u1ea7u b\u1ea1ch th\u1ee7 3 c\u00e0ng ho\u1eb7c song th\u1ee7 3 c\u00e0ng 728 ho\u1eb7c 287.<\/span><\/p>\n
Ngo\u00e0i ra c\u00f2n c\u00f3 c\u00e1ch gh\u00e9p k\u1ebft qu\u1ea3 gi\u1ea3i b\u1ea3y v\u1edbi m\u1ed9t s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t. V\u00ed d\u1ee5 gi\u1ea3i \u0111\u1eb7c bi\u1ec7t l\u00e0 79645. Gi\u1ea3i 7 l\u00e0 15, 83, 46, 02 th\u00ec ch\u1ecdn b\u1ea5t k\u1ef3 c\u00f3 th\u1ec3 l\u00e0 83 v\u1edbi 1 s\u1ed1 trong gi\u1ea3i \u0111\u1eb7c bi\u1ec7t.<\/span><\/p>\n
2. C\u00e1ch Soi C\u1ea7u 3 C\u00e0ng Theo Ng\u00e0y Trong Tu\u1ea7n<\/span><\/h3>\n
<\/p>\n
C\u00e1ch n\u00e0y ngh\u0129a l\u00e0 b\u1ea1n soi \u0111\u01b0\u1ee3c con \u0111\u1ec1 \u01b0ng \u00fd nh\u1ea5t. Ho\u1eb7c n\u1eafm ch\u1eafc con b\u1ea1ch th\u1ee7 th\u00ec n\u00ean \u0111\u00e1nh theo gh\u00e9p th\u00eam v\u1edbi th\u1ee9 c\u1ee7a ng\u00e0y h\u00f4m \u0111\u00f3. V\u00ed d\u1ee5 b\u1ea1n c\u00f3 \u00fd \u0111\u1ecbnh \u0111\u00e1nh b\u1ea1ch th\u1ee7 78 ng\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 ng\u00e0y th\u1ee9 3 th\u00ec c\u00f3 th\u1ec3 \u0111\u00e1nh c\u1eb7p Song Th\u1ee7 3 c\u00e0ng nh\u01b0 sau: 783 ho\u1eb7c 378.<\/span><\/p>\n
3. C\u00e1ch Soi C\u1ea7u 3 C\u00e0ng Theo L\u1ecbch Ch\u1eb5n L\u1ebb<\/span><\/h3>\n
Ng\u00e0y h\u00f4m \u0111\u00f3 l\u00e0 ng\u00e0y ch\u1eb5n ho\u1eb7c l\u1ebb. Sau khi \u0111\u00e3 x\u00e1c \u0111\u1ecbnh th\u00ec ti\u1ebfp theo b\u1ea1n gh\u00e9p v\u00e0o con b\u1ea1ch th\u1ee7 \u0111\u1ec1 m\u00e0 b\u1ea1n ch\u1ecdn tr\u01b0\u1edbc. V\u00ed d\u1ee5 h\u00f4m nay l\u00e0 25, \u0111\u1ecbnh \u0111\u00e1nh b\u1ea1ch th\u1ee7 15 th\u00ec b\u1ea1n c\u00f3 th\u1ec3 soi c\u1ea7u 3 c\u00e0ng l\u00e0 515 hay 155.<\/span><\/p>\n<\/div>\n<\/article>\n
- B\u00f3ng d\u01b0\u01a1ng c\u00f3 : 1 th\u00ec b\u00f3ng l\u00e0 6, 2 th\u00ec b\u00f3ng l\u00e0 7, 3 b\u00f3ng l\u00e0 8, 4 th\u00ec b\u00f3ng l\u00e0 9, 5 th\u00ec b\u00f3ng l\u00e0 0.<\/span><\/li>\n