These numbers go evenly into 52: 1, 2, 4, 13, 26, 52.
52
2, 4, 26, 52.
These numbers: 1, 2, 4, 13, 26, 52.
1, 2, 4, 13, 26, 52.
They are: 2 and 13
1 and 13.
The numbers that go into 52 and leave no remainders are 1, 2, 4, 13, 26 and 52.
1, 2 and 4.
4 and 1
The only common factor is one.
1 and 13.