The answer is 36.
The GCF of 144 and 252 is 36
The Least Common Multiple (LCM) for 72 252 is 504.The Highest Common Factor (HCF) for 72 252 is 36.
The HCF is 18
The HCF of 48 and 72 is 24. The LCM is 144.
144
84
The GCF/HCF of 108 and 252 is 36.
HCF is 48 and LCM is 576
12
144
24