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The GCF of 21 and 2018 is 1.
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Find HCF of: 42 & 4036 63 & 6054 42 & 2018 21 & 4036 63 & 2018 21 & 6054 105 & 2018 147 & 2018
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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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