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The GCF of 21 and 4200 is 21.
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Find HCF of: 42 & 8400 7 & 1400 3 & 600 42 & 4200 21 & 8400 63 & 4200 105 & 4200 147 & 4200
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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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