Multiples and factors are very different. In fact, they are the opposite of each other.
Multiples are the product of any given number and natural number like 1, 2, 3. They are bigger than the given number you are finding multiples for. The only multiple that isn't bigger is the first multiple, the number itself.
e.g. 2. - 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, and so on..
While factors are numbers that can go into one another with no remainder. They are smaller than the given number you are finding factors for. The only factor that isn't smaller is the last factor, the number itself. The factors of 10 are, 1, 2, 5, 10. You can multiply those numbers to get 10.
e.g. 2 x 5 = 10. Thpse 2 numbers in the multiplication sentence are factors of ten.
See? They are very different.