w WPLAYER Drag numbers to complete the prime factorization of 84. Numbers may be used once, more than once, or not at all. 72 5 84 = x 12 X4 X 7 x 3 x 7

We have that the prime factors of 84 are:
2, 2, 3 & 4.
For the formulas given, we will have:
84 = 7 * 12.
84 = 3 * 4 * 7
84 = 2 * 2 * 3 * 7