合数查询
8
499829到499934的合数
499829
499830
499831
499832
499833
499834
499835
499836
499837
499838
499839
499840
499841
499842
499843
499844
499845
499846
499847
499848
499849
499850
499851
499852
499854
499855
499856
499857
499858
499859
499860
499861
499862
499863
499864
499865
499866
499867
499868
499869
499870
499871
499872
499873
499874
499875
499876
499877
499878
499880
499881
499882
499884
499885
499886
499887
499888
499889
499890
499891
499892
499893
499894
499895
499896
499898
499899
499900
499901
499902
499904
499905
499906
499907
499908
499909
499910
499911
499912
499913
499914
499915
499916
499917
499918
499919
499920
499921
499922
499923
499924
499925
499926
499928
499929
499930
499931
499932
499933
499934
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。