what is the least common denoninator in the numbers 9, 11, and 4

Question

i cant figure out the least common denominator for the numbers 9, 11, and 4

Answer 1

Since 11 is a prime number, it has no common divisors with the other two, which actually also have no common divisors. Therefore, the least common denominator is just 4*9*11=396

Answer 2

I guess they want a little explanation:

 

The common denominator is the least common multiple (LCM).

 

First, factor everything down to the prime factorization of each number.

 

 

9 = 3 * 3  = 3²

 

11 = 1 * 11

 

4 = 2 * 2 = 2²

 

 

Then you take the highest power of each unique factor:

 (2*2) * (3*3) * 11 = 396