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The GCF of 21 and 504 is 21.
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Find HCF of: 42 & 1008 63 & 1512 7 & 168 105 & 2520 147 & 3528 3 & 72 42 & 504 21 & 1008 63 & 504 21 & 1512 105 & 504 21 & 2520 147 & 504 21 & 3528
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The greatest common factor (GCF) is also known as greatest common divisor (GCD) or highest common factor (HCF).
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