# What is the GCF of 12, 32 and 64?????????????????????????????

2
by Jabillodon917

2015-03-06T19:36:56+08:00

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Factors of 12:
1,2,3,4,6,12
Factors of 32:
1,2,4,8,16,32
Factors of 64:
1,2,4,8,16,32,64
GCF=4
You should write the factors properly or group them like 1 and 12, 2 and 6. But really, its not factors that you should look for, its the multiples.
I mean the PRIME FACTORS
2015-03-06T20:00:38+08:00

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Prime factors of 12: 2 x 2 x 3 = 2,2,3
Prime factors of 32: 2 x 2 x 2 x 2 x 2 = 2,2,2,2,2
Prime factors of 62: 2 x 2 x 2 x 2 x 2 x 2 = 2,2,2,2,2,2

Their common factor is 2. So the GCF is 2.
Yeah, I overlook things like that. If you look at my answer, you'll notice the twos. I didn't.