69 in baza 10 :
69:2 = 34 r 1
34:2 = 17 r 0
17 : 2 = 8 r 1
8 : 2 = 4 r 0
4 : 2 = 2 r 0
2: 2 = 1 r 0
1: 2 = 0 r 1
69 in baza 10 = 1000101
131 in baza 10
131 : 2 = 65 r 1
65 : 2= 32 r 1
32 : 2 =16 r 0
16 : 2 = 8 r 0
8 : 2 = 4 r 0
4 : 2 = 2 r 0
2 : 2 = 1 r 0
1 : 2 = 0 r 1
131 in baza 10 = 10000011