SOLUTION: HELP.... My daughter need to find the LCM for this problem. 25;100;64 Thanks a lot.

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Question 19430: HELP....
My daughter need to find the LCM for this problem.
25;100;64
Thanks a lot.

Answer by Earlsdon(6103) About Me  (Show Source):
You can put this solution on YOUR website!
One approach to this kind of problem is to find the prime factors of each number, then multiply together the highest power of each of the prime factors.
25+=+%285%29%285%29 = 5%5E2
100+=+%282%29%282%29%285%29%285%29 = %282%5E2%29%285%5E2%29
64+=+%282%29%282%29%282%29%282%29%282%29%282%29 = %282%5E6%29
The highest power of each of the prime factors = 2%5E6%29 and 5%5E2
Multiply these to get %282%5E6%29%285%5E2%29+=+%2864%29%2825%29 = 1600
LCM = 1600