1到48中取2到4个不同的数连成4位数, 共多少个不同的四...

1056,1057,1058,1059,1061,1062,1063,1064,1065,1067,1068,1069,1071,1072,1073,1074,1075,1076,1078,1079,1081,1082,1083,1084,1085,1086,1087,1089,...5747574858105811581258135814581558165817581858195820582158225823582458255826582758285829583058315832583358345835583658375838583958405841584258435844584558465847584859105911591259135914...


十进制下,(n+1)!比n!多两位数时,n的最小值为何整数...

3×106<10!<4×106,位数为7;3.3×107<11!<4.4×107,位数为8;3.9×108<12!<5.3×108,位数为9;5×109<13!<7×109,位数为10;...1175,1177,1178,1179,1180,1181,1182,1183,1184,1185,1186,1187,1188,1189,1191,1192,1193,1194,1195,1196,1197,1198,1199,1200,1201,1202...


科学家为什么执着于计算圆周率,π隐藏了宇宙的设计...

在我们生存的这个宇宙当中,存在着许多的常数,比如:光速,普朗克常数,精细结构常数等等。这些常数只要存在些许的差别,这个宇宙就将不复存在...


最少需要前多少位圆周率可以在其中找到所有的四位数...

7013, 57460130, 57471304, 57483047, 57491643, 57544378, 57563788, 57578851, 57598518, 57605185, 57615290, 57642909, 57650928, 57679285, 57682854, 57695452, 57712011...1202, 199414296, 199501062, 199557448, 199834487, 199847551, 199950385, 200023856, 200038565, 200045653, 200057759, 200167594, 200174141, 200202844, 200300964, 200564841...


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