Identify the GCF and LCM of each pair of numbers.

a) 120 = 2 X 2 X 2 X 3 X 5 210
= 2 × 3 × 5 × 7

b) 252= 2 x 2 X 3 X 3 X 7 60
= 2 × 2 × 3 × 5​