Question

what is the difference between a multiple and a factor?

Answer 1

A multiple is like: 
Multiples of 5: 5, 10, 15, 20, 25
A factor is like:
Factors of 10:
1,2,5,10

Hope this helps!

Answer 2

Factor are what we can multiply and multiples are what we get after multiplying , that's the difference between factors and multiples.