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What is the gcf of 36 and 15?

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โˆ™ 2015-11-07 02:39:17

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Expressing each number as a product of prime numbers can help a lot.

Prime factorization of 36 = 2x2x3x3......(1)

Prime factorization of 15 = 3x5......(2)

From 1 and 2 it is clear that 3 is the only number which divides both 36 and 15.

So, greatest common factor = 3.

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โˆ™ 2011-03-29 04:39:45
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โˆ™ 2015-11-07 02:39:17

The GCF is 3.

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Q: What is the gcf of 36 and 15?
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