What is the greatest divisor of 372 that is smaller than 50 and also a factor of 72?

The answer is 12.

Hope this helps! Have a great day!

72 = 2 × 2 × 2 × 3 × 3
372 = 2 × 2 × 3 × 31

Those numbers have mutual prime factorization in 2 × 2 × 3, that means the result of the multiplication represents the greatest divisor of 372 and 72.
2 × 2 × 3 = 12

The greatest divisor is 12