Find the LCM of 6 , 9 and 15
"Prime Factorization" is finding which prime numbers multiply together to make the original number.
In this case:
6 = 2 * 3 = 2 ^ 1 * 3 ^ 1
9 = 3 ^ 2
15 = 3 * 5 = 3 ^ 1 * 5 ^ 1
The highest power of the three prime numbers 2, 3, and 5 is:
2 ^ 1 = 2
3 ^ 2 = 9
5 ^ 1 = 5
2 * 9 * 5 = 90
LCM = 90