What is the GCF of 756 and 90?

Answer 1

The best way to figure this problem out is to find out all of the factors of the smaller number, which is 90. Start with the highest factor of 90 and work your way down until you find a number that goes into 756.

Here is the answer.

The factors of 90 are 1,2,3,5,6,9,10,15,18,30,45,90

90 does not go into 756.

45 does not go into 756.

30 does not go into 756.

18 goes into 756, so the answer is 18.