What is the fact family for these set of numbers 4,6,24?

As may be observed (and is mentioned above), these three numbers have a multiplicative relationship; in other words, 4 x 6 = 24.
Add to this the capability of inverting an operation, and the fact that division is the opposite of multiplication, and you have an easy collection of 8 facts:
4 x 6 = 24
6 x 4 = 24
24 / 4 = 6
24 / 6 = 4
24 = 4 x 6
24 = 6 x 4
6 = 24 / 4
4 = 24 / 6