Question

What number goes into 104 and 60?

Answer 1

Well I don't know ! 
Let's find out:

The factors of 104 are  1,  2,  4,  8,  13,  26,  52, and  104 .

The factors of 60 are  1,  2,  3,  4,  5,  6,  10,  12,  15,  20,  30, and  60 .

The common factors (the numbers that go into both 104 and 60) are 

           1,  2, and  4 .