Question

What multiples of 4 are not factors of 48?

Answer 1

Multiples of four:
4, 8, 12, 16, 24, 28, 32, 36

Is 4 a factor of 48?
48/4=12
Yes, so that means 4 is not the answer.

Is 8 a factor of 48?
48/8=6
Yes, so that means 8 is not the answer.

Is 12 a factor of 48?
48/12=4
Yes, so that means 12 is not the answer.

Is 16 a factor of 48?
48/16=3
Yes, so that means 16 is not the answer.

Is 24 a factor of 48?
48/24=12
Yes, so that means 24 is not the answer.

Is 28 a factor of 48?
48/28= irrational number
No, so that means 28 is the answer.

Is 32 a factor of 48?
48/32= irrational number
No, so that means 32 is the answer.

Is 36 a factor of 48?
48/36= irrational number
No, so that means 36 is the answer.

Answer: 28, 32, 36

Answer 2

There is 20, then there's bunches of even numbers after the number 48. Also there's 28, 32, 36, 40 and 44.
Hope this helps!:)