合数查询
8
498520到498629的合数
498520
498522
498524
498525
498526
498528
498529
498530
498531
498532
498533
498534
498535
498536
498537
498538
498539
498540
498541
498542
498543
498544
498545
498546
498547
498548
498549
498550
498552
498553
498554
498555
498556
498558
498559
498560
498561
498562
498563
498564
498565
498566
498567
498568
498569
498570
498571
498572
498573
498574
498575
498576
498578
498579
498580
498581
498582
498584
498585
498586
498587
498588
498589
498590
498591
498592
498593
498594
498595
498596
498597
498598
498600
498601
498602
498603
498604
498605
498606
498607
498608
498609
498610
498612
498614
498615
498616
498617
498618
498619
498620
498621
498622
498623
498624
498625
498626
498627
498628
498629
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。