C\u00f3 r\u1ea5t nhi\u1ec1u b\u1ea1n m\u1edbi b\u01b0\u1edbc ch\u00e2n v\u00e0o con \u0111\u01b0\u1eddng l\u00f4 \u0111\u1ec1 \u0111\u1ec1u lu\u00f4n c\u00f3 nh\u1eefng c\u00e2u h\u1ecfi l\u00e0 : Soi c\u1ea7u l\u00e0 g\u00ec ?<\/strong>; T\u1ea1i sao ph\u1ea3i soi c\u1ea7u ?; L\u00e0m sao \u0111\u1ec3 soi c\u1ea7u ch\u00ednh x\u00e1c\u2026 v\u00e0 c\u00f2n v\u00f4 s\u1ed1 c\u00e1c c\u00e2u h\u1ecfi kh\u00e1c n\u1eefa. H\u00f4m nay Soicau.biz s\u1ebd \u0111\u01b0a ra l\u1eddi gi\u1ea3i \u0111\u00e1p cho c\u00e1c b\u1ea1n, \u0111\u1ec3 c\u00e1c b\u1ea1n bi\u1ebft \u0111\u01b0\u1ee3c v\u1ec1 soi c\u1ea7u c\u0169ng c\u00e1c c\u00e1ch soi c\u1ea7u<\/em> m\u00e0 c\u00e1c cao th\u1ee7 c\u0169ng nh\u01b0 chuy\u00ean gia \u00e1p d\u1ee5ng \u0111\u1ec3 soi c\u1ea7u.<\/p>\n <\/p>\n Nhi\u1ec1u b\u1ea1n \u0111\u00e3 nghe v\u1ec1 soi c\u1ea7u r\u1ea5t nhi\u1ec1u, trong c\u1edd b\u1ea1c ch\u00fang ta c\u0169ng nghe c\u1ea7u ch\u1eb5n, c\u1ea7u l\u1ebb th\u00ec soi c\u1ea7u ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u n\u00f4m na l\u00e0 vi\u1ec7c ch\u00fang l\u1ea5y m\u1ed9t con s\u1ed1 b\u1ea5t k\u1ef3, con s\u1ed1 \u0111\u1eb9p \u0111\u1ec3 ch\u00fang ta t\u00ecm ra quy lu\u1eadt c\u1ee7a n\u00f3 ho\u1ea1t \u0111\u1ed9ng trong nhi\u1ec1u l\u1ea7n ra c\u00e1c \u0111\u1ee3t tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u01b0a ra d\u1ef1 \u0111o\u00e1n kh\u1ea3 n\u0103ng ra c\u00e1c l\u1ea7n ti\u1ebfp theo.<\/p>\n Soi c\u1ea7u ch\u00ednh l\u00e0 h\u00ecnh th\u1ee9c l\u1ea5y hai con s\u1ed1 b\u1ea5t k\u1ef3 d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 x\u1ed5 s\u1ed1 c\u1ee7a mi\u1ec1n b\u1eafc, mi\u1ec1n trung, mi\u1ec1n nam \u0111\u1ec3 ch\u1ecdn ra nh\u1eefng con s\u1ed1 \u0111\u1eb9p trong ng\u00e0y h\u00f4m nay s\u1ebd ra d\u1ef1a tr\u00ean c\u00e1c ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u.<\/p>\n V\u1eady th\u00ec l\u00e0m sao \u0111\u1ec3 bi\u1ebft c\u00e1c c\u1ea7u l\u00f4 n\u00e0o m\u00ecnh c\u1ea7n nghi\u00ean c\u1ee9u, c\u1ea7n soi th\u00ec c\u00e1c b\u1ea1n xem ph\u1ea7n ti\u1ebfp theo d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n Th\u00f4ng th\u01b0\u1eddng m\u1ecdi ng\u01b0\u1eddi ch\u1ee7 y\u1ebfu ch\u1ec9 t\u1eadp trung l\u00e0 soi c\u1ea7u x\u1ed5 s\u1ed1 mi\u1ec1n b\u1eafc<\/span>, hai mi\u1ec1n c\u00f2n l\u1ea1i m\u1ecdi ng\u01b0\u1eddi \u00edt soi h\u01a1n. N\u00ean ph\u1ea7n n\u00e0y m\u00ecnh t\u1eadp trung ch\u1ee7 y\u1ebfu l\u00e0 soi c\u1ea7u mi\u1ec1n b\u1eafc.<\/p>\n Nh\u1eefng v\u1ecb tr\u00ed c\u1ea7n soi d\u1ef1a theo b\u1ea3ng k\u1ebft qu\u1ea3 XSMB l\u00e0 theo c\u00e1c gi\u1ea3i<\/p>\n C\u1ed9ng t\u1ea5t c\u1ea3 l\u1ea1i ta c\u00f3 : 50 + 40 + 9 + 8 = 107 s\u1ed1 hay ch\u00fang ta c\u00f2n g\u1ecdi l\u00e0 107 v\u1ecb tr\u00ed soi c\u1ea7u kh\u00e1c nhau.<\/p>\n D\u1ef1a theo k\u1ebft qu\u1ea3 c\u00e1c v\u1ecb tr\u00ed soi c\u1ea7u \u1edf tr\u00ean, m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 th\u1ea5y \u0111\u01b0\u1ee3c l\u00e0 ch\u00fang ta c\u00f3 107 v\u1ecb tr\u00ed. V\u1eady th\u00ec theo \u0111\u1ecbnh ngh\u0129a v\u1ec1 soi c\u1ea7u th\u00ec m\u1ed7i v\u1ecb tr\u00ed th\u00ec gh\u00e9p v\u1edbi 106 v\u1ecb tr\u00ed c\u00f2n l\u1ea1i s\u1ebd cho ra m\u1ed9t c\u1ea7u l\u00f4 kh\u00e1c nhau.<\/p>\n Theo ph\u00e9p t\u00ednh giai th\u1eeba th\u00ec t\u1ed5ng c\u1ea7u l\u00f4 gi\u1eefa 2 v\u1ecb tr\u00ed kh\u00e1c nhau s\u1ebd l\u00e0 :<\/p>\n [(107 !)\/(107-2) !x2 !] = 5671<\/p>\n T\u1eeb 107 v\u1ecb tr\u00ed kh\u00f4ng nh\u1eefng gh\u00e9p v\u1edbi v\u1ecb tr\u00ed kh\u00e1c m\u00e0 ch\u00ednh n\u00f3 c\u00f2n t\u1ef1 gh\u00e9p v\u1edbi ch\u00ednh n\u00f3 \u0111\u1ec3 cho ra c\u00e1c c\u1eb7p s\u1ed1 k\u00e9p. Nh\u01b0 v\u1eady ch\u00fang ta c\u00f3 th\u00eam 107 c\u1ea7u l\u00f4 k\u00e9p n\u1eefa.<\/p>\n Ngo\u00e0i ra 107 v\u1ecb tr\u00ed c\u1ea7u l\u00f4 n\u00e0y c\u00f2n gh\u00e9p v\u1edbi c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean t\u1eeb 0 \u0111\u1ebfn 9. V\u00ec th\u1ebf ta c\u00f3 th\u00eam 107\u00d710=1070 c\u1ea7u l\u00f4 n\u1eefa.<\/p>\n T\u1ed5ng s\u1ed1 t\u1ea5t c\u1ea3 c\u00e1c c\u1ea7u l\u00f4 m\u00e0 m\u1ecdi ng\u01b0\u1eddi ch\u01a1i c\u1ea7n ph\u1ea3i bi\u1ebft \u0111\u1ec3 soi c\u1ea7u :<\/p>\n 5671 + 107 + 1070 = 6048 c\u1ea7u<\/strong><\/p>\n \u0110\u1ebfn \u0111\u00e2y th\u00ec m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 n\u1eafm r\u00f5 \u0111\u01b0\u1ee3c s\u1ed1 l\u01b0\u1ee3ng c\u00e1c c\u00e2u l\u00f4 c\u1ea7n x\u00e9t \u0111\u1ec3 gi\u00fap cho ng\u01b0\u1eddi ch\u01a1i c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng c\u1ea7u l\u00f4 th\u00edch h\u1ee3p cho trong qu\u00e1 tr\u00ecnh soi c\u1ea7u.<\/p>\n H\u01a1n n\u1eefa m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 bi\u1ebft v\u1ecb tr\u00ed c\u00e1c c\u1ea7u l\u00f4 v\u00e0 t\u1ed5ng c\u00e1c c\u1ea7u c\u1ea7n x\u00e9t l\u00e0 m\u1ed9t chuy\u1ec7n nh\u01b0ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 ch\u1ecdn ra c\u1ea7u th\u00edch h\u1ee3p l\u1ea1i l\u00e0 m\u1ed9t chuy\u1ec7n kh\u00e1c. 6048 l\u00e0 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng c\u1ea7u qu\u00e1 nhi\u1ec1u d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u00fang ta kh\u00f4ng bi\u1ebft ch\u1ecdn c\u1ea7u n\u00e0o \u0111\u1ec1 ph\u00f9 h\u1ee3p. V\u00ec th\u1ebf l\u1eddi khuy\u00ean ch\u00e2n th\u00e0nh l\u00e0 m\u1ecdi ng\u01b0\u1eddi n\u00ean ch\u1ecdn m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u n\u00e0o \u0111\u00f3 \u0111\u1ec3 theo m\u1ed9t c\u1ea7u, \u0111\u1ec3 t\u1eeb \u0111\u00f3 c\u01a1 h\u1ed9i m\u1ecdi ng\u01b0\u1eddi kh\u1ea3 n\u0103ng \u0103n s\u1ebd r\u1ea5t l\u1edbn.<\/p>\n<\/div>\nSoi c\u1ea7u l\u00e0 g\u00ec v\u00e0 c\u00e1ch soicau \u0111\u1ec1 nh\u01b0 th\u1ebf n\u00e0o? <\/strong><\/h2>\n
Soi c\u1ea7u trong c\u1edd b\u1ea1c<\/strong><\/h3>\n
Soi c\u1ea7u trong l\u00f4 \u0111\u1ec1, x\u1ed5 s\u1ed1<\/strong><\/h3>\n
C\u00f3 bao nhi\u00eau v\u1ecb tr\u00ed c\u1ea7n soi c\u1ea7u m\u00e0 m\u1ecdi ng\u01b0\u1eddi c\u1ea7n bi\u1ebft khi ch\u01a1i ?<\/strong><\/h3>\n
\n
T\u1ed5ng c\u1ea7u mi\u1ec1n b\u1eafc m\u00e0 m\u1ecdi ng\u01b0\u1eddi c\u1ea7n ph\u1ea3i soi<\/strong><\/h3>\n
S\u1ed1 c\u1ea7u theo t\u1eebng v\u1ecb tr\u00ed<\/strong><\/h4>\n