Prove that 5 ^ 60-1 is a multiple of 56

Prove that 5 ^ 60-1 is a multiple of 56

5^60-1 =（5^30+1）（5^30-1） =（5^30+1）（5^15+1）（5^15-1） =（5^30+1）（5^15+1）(25^3-1) =（5^30+1）（5^15+1）[(25-1)(25^2+25*1+1)] =（5^30+1）（5^15+1）[24*651] =（5^30+1）（5^15+1）[(3*8)(7*93)] =...

It's a multiple of 2 and 3: 35 () 2 125 () is 2.3. It's a multiple of 5: 21 () 4 () 0

35021250
two hundred and eleven thousand four hundred and ten
The answer is not the only one,

Find integers and natural numbers, odd and even numbers, and multiples of 2.3 and 5 at 20, 75, 0.5, 1, 18, 60, 11, 21, 35, 92, 87101 and 9.8240
Come on, it's tonight

Integers: except for 0.5 and 9.8, all other natural numbers are the same. Odd numbers: 75, 1, 11, 21, 35, 87101 even numbers: 20, 18, 60, 92, 2402, 3, 5 multiples: 60240 this problem is very simple. Integers do not include decimals and fractions. Integers above 0 and 0 are the same. 2.3.5 is to look at 2, 5 multiples: 20, 60240