合数查询
8
498847到498954的合数
498847
498848
498849
498850
498851
498852
498853
498854
498855
498856
498858
498860
498861
498862
498863
498864
498865
498866
498867
498868
498869
498870
498871
498872
498873
498874
498875
498876
498877
498878
498879
498880
498882
498883
498884
498885
498886
498887
498888
498889
498890
498891
498892
498893
498894
498895
498896
498897
498898
498899
498900
498901
498902
498903
498904
498905
498906
498908
498909
498910
498911
498912
498913
498914
498915
498916
498917
498918
498919
498920
498921
498922
498924
498925
498926
498927
498928
498929
498930
498932
498933
498934
498935
498936
498938
498939
498940
498941
498942
498943
498944
498945
498946
498948
498949
498950
498951
498952
498953
498954
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。