Therefore, from equation (1) 60 can go into 4 for 15 times.

What numbers does 4 go into?

Simple, 4 goes into 4, 8, 12, and 16.

Can you go into 60?

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