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The GCF of 21 and 387 is 3.
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Find HCF of: 42 & 774 63 & 1161 7 & 129 105 & 1935 147 & 2709 42 & 387 21 & 774 63 & 387 21 & 1161 105 & 387 21 & 1935 147 & 387 21 & 2709
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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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