Does any number go into 25 and 56?

Answer 1

Some do and some don't.

1, 5, 25, and their negatives, go into 25. No other numbers do.

1, 2, 4, 7, 8, 14, 28, 56, and their negatives, go into 56. No other numbers do.

The only number that goes into both 25 and 56 is ' 1 '.