{"id":18125,"date":"2024-05-04T01:48:31","date_gmt":"2024-05-04T01:48:31","guid":{"rendered":"https:\/\/soicau5018.minhngocxoso.com\/?p=18125"},"modified":"2024-05-04T01:48:31","modified_gmt":"2024-05-04T01:48:31","slug":"kham-pha-cach-choi-dan-de-khong-chia-het-cho-3","status":"publish","type":"post","link":"https:\/\/soicaumienbac8.com\/kham-pha-cach-choi-dan-de-khong-chia-het-cho-3\/","title":{"rendered":"kh\u00e1m ph\u00e1 c\u00e1ch ch\u01a1i d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3"},"content":{"rendered":"\n
D\u00e0n \u0111\u1ec1 l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u00e1p d\u1ee5ng v\u00e0 l\u1ef1a ch\u1ecdn. Trong \u0111\u00f3 d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 l\u00e0 m\u1ed9t trong nh\u1eefng d\u1ea1ng d\u00e0n \u0111\u01b0\u1ee3c t\u00ecm ki\u1ebfm r\u1ea5t nhi\u1ec1u. \u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng con s\u1ed1 may m\u1eafn khi ch\u01a1i b\u1ea1n c\u1ea7n n\u1eafm \u0111\u01b0\u1ee3c nh\u1eefng th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 c\u00e1ch t\u1ea1o d\u00e0n \u0111\u1ec1. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng \u0111i\u1ec1u b\u1ed5 \u00edch.<\/p>\n\n\n\n
D\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 n\u1eb1m trong b\u1ed9 t\u1eeb 00 \u0111\u1ebfn 99. Tuy nhi\u00ean ch\u00fang ph\u1ea3i th\u1ecfa m\u00e3n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n l\u00e0 kh\u00f4ng chia h\u1ebft cho 3. V\u00ed d\u1ee5 nh\u01b0 s\u1ed1 47 kh\u00f4ng chia h\u1ebft cho 3 th\u00ec s\u1ebd n\u1eb1m trong d\u00e0n \u0111\u1ec1 n\u00e0y. Nh\u01b0ng trong d\u00e0n \u0111\u1ec1 \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p v\u00e0 ph\u00e2n chia th\u00e0nh hai d\u1ea1ng kh\u00e1c nhau. \u0110\u00f3 l\u00e0 kh\u00f4ng chia h\u1ebft cho 3 d\u01b0 1 v\u00e0 kh\u00f4ng chia h\u1ebft cho 3 d\u01b0 2.<\/p>\n\n\n\n
Ng\u01b0\u1eddi ch\u01a1i c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00ecm ra \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3. V\u1edbi c\u00e1ch t\u00ednh t\u1ed5ng c\u1ee7a hai \u0111\u00f3 l\u1ea1i, n\u1ebfu t\u1ed5ng c\u1ee7a ch\u00fang kh\u00f4ng chia h\u1ebft cho 3 th\u00ec s\u1ebd thu\u1ed9c d\u00e0n \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n
V\u00ed d\u1ee5:<\/p>\n\n\n\n
D\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 th\u1ef1c t\u1ebf l\u00e0 g\u1ed3m t\u1ea5t c\u1ea3 nh\u1eefng s\u1ed1 t\u1eeb 00 – 99. Nh\u01b0ng c\u00f3 \u0111i\u1ec3m chung l\u00e0 kh\u00f4ng chia h\u1ebft cho 3. Trong b\u00e0i n\u00e0y ch\u00fang t\u00f4i ch\u1ec9 gi\u1edbi thi\u1ec7u d\u00e0n 33 s\u1ed1 nh\u01b0ng hi\u1ec7n nay c\u00f3 r\u1ea5t nhi\u1ec1u. Th\u00eam v\u00e0o \u0111\u00f3 d\u00e0n \u0111\u1ec1 n\u00e0y \u0111\u01b0\u1ee3c chia th\u00e0nh 2 lo\u1ea1i kh\u00e1c nhau. \u0110\u00f3 l\u00e0 chia cho 3 d\u01b0 1 v\u00e0 chia cho 3 d\u01b0 2. C\u1ee5 th\u1ec3:<\/p>\n\n\n\n
L\u1ea5y v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n\n\n\n
\u0110\u00e0n \u0111\u1ec1 s\u1ed1 kh\u00f4ng chia h\u1ebft cho 3 c\u00f3 2 lo\u1ea1i c\u01a1 b\u1ea3n \u0111\u00f3 l\u00e0 chia h\u1ebft d\u01b0 1 v\u00e0 chia h\u1ebft d\u01b0 2. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 th\u00f4ng tin chi ti\u1ebft b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng:<\/p>\n\n\n\n
D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 d\u01b0 1 bao g\u1ed3m nhi\u1ec1u con s\u1ed1 kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 th\u1ed1ng k\u00ea t\u1eeb c\u00e1c chuy\u00ean gia b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o: 01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97<\/p>\n\n\n\n
B\u1ed9 d\u00e0n \u0111\u1ec1 n\u00e0y bao g\u1ed3m 33 con. \u0110\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c ch\u00fang thu\u1ed9c d\u00e0n \u0111\u1ec1 d\u01b0 1 th\u00ec b\u1ea1n c\u1ea7n \u00e1p d\u1ee5ng c\u00e1ch t\u00ednh t\u1ed5ng 2 con \u0111\u1ec3 nh\u1eadn bi\u1ebft.<\/p>\n\n\n\n
V\u00ed d\u1ee5:<\/p>\n\n\n\n
T\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 d\u01b0 1, \u0111\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 d\u01b0 2 c\u00e1c b\u1ea1n c\u0169ng ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1ch t\u00ednh t\u1ed5ng v\u00e0 chia theo c\u00f4ng th\u1ee9c. V\u00ed d\u1ee5 sau \u0111\u00e2y s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 hi\u1ec3u h\u01a1n.<\/p>\n\n\n\n
V\u00ed d\u1ee5:<\/p>\n\n\n\n
B\u1ed9 s\u1ed1 d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 d\u01b0 2 c\u0169ng g\u1ed3m 33 con s\u1ed1 nh\u01b0 sau: 02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n\n\n\n
T\u1eeb hai lo\u1ea1i d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 \u1edf tr\u00ean c\u00f3 th\u1ec3 t\u1ed5ng k\u1ebft l\u1ea1i d\u00e0n \u0111\u1ec1 n\u00e0y bao g\u1ed3m c\u00e1c s\u1ed1 sau: 01, 04, 07, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97, 02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n\n\n\n
Qua b\u00e0i vi\u1ebft tr\u00ean \u0111\u00e3 chia s\u1ebb nh\u1eefng th\u00f4ng tin \u0111\u1ec3 c\u00e1c b\u1ea1n kh\u00e1m ph\u00e1 v\u1ec1 d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3. \u0110\u00e2y l\u00e0 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p r\u1ea5t chi ti\u1ebft \u0111\u1ec3 anh em b\u1eaft d\u00e0n \u0111\u1ec1. N\u1ebfu c\u00e1c b\u1ea1n \u00e1p d\u1ee5ng nh\u1eefng con s\u1ed1 n\u00e0y th\u00ec x\u00e1c su\u1ea5t tr\u00fang l\u1edbn s\u1ebd r\u1ea5t cao. B\u1edfi v\u00ec t\u1ea5t c\u1ea3 nh\u1eefng th\u00f4ng tin \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e1c chuy\u00ean quan s\u00e1t v\u00e0 theo d\u00f5i k\u1ef9 l\u01b0\u1ee1ng su\u1ed1t nhi\u1ec1u ng\u00e0y. Ch\u00fac t\u1ea5t c\u1ea3 c\u00e1c b\u1ea1n b\u1eaft \u0111\u01b0\u1ee3c con s\u1ed1 mang l\u1ea1i may m\u1eafn v\u00e0 tr\u00fang ti\u1ec1n t\u1ef7.<\/p>\n\r\n
D\u00e0n \u0111\u1ec1 l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch ch\u01a1i l\u00f4 \u0111\u1ec1 \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u00e1p d\u1ee5ng v\u00e0 l\u1ef1a ch\u1ecdn. Trong \u0111\u00f3 d\u00e0n<\/p>\n","protected":false},"author":1,"featured_media":18126,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[3641,3645,3644,3642,3646,158,3649,3056,3475,939,3474,3478,3058,3640,3621,3404,3639,3435,3476,3648,3477,3643,3647,3481],"yoast_head":"\n