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Best Answer

hcf(12, 36, 42) = 6

12 = 22 x 3

36 = 22 x 32

42 = 2 x 3 x 7

hcf = 2 x 3 = 6

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12y ago
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Wiki User

8y ago

The GCF is 6.

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Q: What is the greatest common factor of 12 36 and 42?
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