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The GCF of 21 and 580 is 1.
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Find HCF of: 42 & 1160 63 & 1740 105 & 2900 147 & 4060 42 & 580 21 & 1160 63 & 580 21 & 1740 105 & 580 21 & 2900 147 & 580 21 & 4060
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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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