One.
It is: 1
Two.
1, 2, 4 and 8.
1 and 2
2
1
2 AND 4
1
Just 1.
Nothing goes into 8 and 15 evenly. If you're trying to find a common denominator, You must multiply the two numbers, which is 120.~Emily
8 goes in 100, 12 times evenly with a remainder of 4