1,5,10,15,20,50,100,110,150
9. The square root of 81 is 9.
1, 2, 4, 8, 16, 32.
56=2x2x2x7
No
1,2,4,7,8,14,28,56
1,2,4,7,8,14,28,56
The prime factorization of 56 is 2, 2, 2, and 7, so there there are two prime numbers, 2 and 7, that can evenly go into 56.
You can not simplyfy it any more, because there are no Numbers that go both equaly divided into 11 and 100. (1 doesn't count.)
other than 1 and itself there are six other numbers that go into 56 2, 4, 7, 8, 14, 28
The whole numbers that go into 56 are: 1, 2, 4, 7. 8, 14, 28, 56
75 / 2 = 37.5