56!/5!51! = 3819816
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There are 56C5 = 56*55*54*53*51/(5*4*3*2*1) = 3,819,816 combinations.
There are 59C5 = 59*58*57*56*55/(5*4*3*2*1) = 5,006,386 combinations.
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 '.
The answer is 59C5 = 59*58*57*56*55/(5*4*3*2*1) = 5,006,386
In 56, the numbers that go into it are 1, 2, 4, 7, 8, 14, 28, and 56. In 60, the numbers that go into it are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.