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The GCF of 21 and 2439 is 3.
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Find HCF of: 42 & 4878 63 & 7317 7 & 813 42 & 2439 21 & 4878 63 & 2439 21 & 7317 105 & 2439 147 & 2439
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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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