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The GCF of 21 and 2639 is 7.
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Find HCF of: 42 & 5278 63 & 7917 3 & 377 42 & 2639 21 & 5278 63 & 2639 21 & 7917 105 & 2639 147 & 2639
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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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