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The GCF of 42 and 4020 is 6.
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Find HCF of: 84 & 8040 21 & 2010 14 & 1340 84 & 4020 42 & 8040 126 & 4020 210 & 4020 294 & 4020
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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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