112
120 is the lowest of many.
You would find the factors of each and cancel any they have in common. But 15 and sixteen do not have common factors, therefore 15 over 16 is already in lowest terms.
29 = 512. This has 10 factors which are 1, 2, 4, 8, 16, 32, 64, 128, 256 and 512. Update: 29 is a nice solution but by no means the lowest. 48 has factors 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48 and is a good deal lower.
5/9 is a lowest term. They share no common factors.
16 has the divisors 1, 2, 4, 8, and 16.
16 has five factors.
16 is a number that has four identical even factors.
Indeed, the number 16 has 5 factors, 1, 2, 4, 8, and 16.
Well, honey, the lowest common multiple of 13 and 16 is 208. It's the smallest number that both 13 and 16 can divide into evenly without leaving a remainder. So, there you have it, simple math for ya!
The factors of 16 are: 1, 2, 4, 8, 16.
16 and 9 are coprime (they have no common factors), so the LCM is 16 x 9 = 144.
Only perfect squares can have an odd number of factors. The answer is 16. It has five factors: 1,2,4,8,16.