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February 1, 2015

February 1, 2015

Posted by **Jasmine** on Tuesday, December 5, 2006 at 3:08am.

(1)Finding the lcm using which ever method for:5,15 , and 20

8:2x2x2x3x5x5

15:2x2x2x3x5x5

20:2x2x2x3x5x5

---------------

LCM:2x2x2x3x5x5

After simplification LCM:120

(2)Find the GCF for each of the following numbers: 36, 64, 180

Prime Factors

36=2x2x3x3x1

64=2x2x2x2x2x2x1

180=2x2x3x3x5x1

Common Prime Factors

36= 2x2x2

64=2x2x2

180=2x2x2

GCF=4

I am not certain what your logic is, but the answers are correct.

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