Factors and multiples can be a bit confusing.
Remember factors are all the math facts of a given number.
example: 24 has the math facts
1 x 24 2 x 12 3 x 8 4 x 6
The factors are: 1, 2, 3, 4, 6, 8, 12, 24
The multiples of 24 are 24, 48, 72, 98....