NWD(4,12)=4
D4=1,2,4
D12=1,2,3,4,6,12
NWD(9,19)=1
D9: 1,3,9
D19:1,19
NWD(2,49)=1
D2: 1,2
D49:1,7,49
NWD(36,2)=1
D36:1,2,3,6,12,36
D2:1,2
NWD(28,5)=1
D28:1,2,4,7,14,28
D5:1,5
NWD (11,64)=1
D11:1,11
D64:1,2,4,8,16,32,64
Nwd10,13=1
D10:1,2,5,10
D13:1,13
NWD(21,48)=3
D21:1,3,7,21
D48:1,2,3,6,8,16,24,48
NWD 31,30=1
D31:1,31
D30:1,2,3,5,6,10,15,30
NWD 36,2=2
d36:1,2,3,6,12,36
D2:1,2