合数查询
8
498199到498304的合数
498199
498200
498201
498202
498203
498204
498205
498206
498207
498208
498210
498211
498212
498213
498214
498215
498216
498217
498218
498219
498220
498221
498222
498223
498224
498225
498226
498228
498229
498230
498231
498232
498233
498234
498235
498236
498237
498238
498239
498240
498241
498242
498243
498244
498245
498246
498247
498248
498249
498250
498251
498252
498253
498254
498255
498256
498258
498260
498261
498262
498263
498264
498265
498266
498267
498268
498269
498270
498272
498273
498274
498275
498276
498277
498278
498279
498280
498281
498282
498283
498284
498285
498286
498287
498288
498289
498290
498291
498292
498293
498294
498295
498296
498297
498298
498299
498300
498302
498303
498304
合数是至少有三个正因数的自然数，奇合数构成算术级数定理（狄利克雷定理）。卡迈克尔数是绝对伪素数，满足对所有基数的费马同余。合数分解是公钥密码分析的核心问题，未被证明是否属于NP完全问题。最小合数为4，唯一偶合数为2的例外。