How many common factors of 20 and 30 are there in all?
3
2
4
5
How many common factors of 32 and 48 are there in all?
7
5
4
6
Precious Jewel is playing with blocks. She wants to put all 567 of her blocks into stacks with the same number of blocks in each stacks. How many stacks can she make?
11
4
6
9