Solutions by everydaycalculation.com
The GCF of 680 and 420 is 20.
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Find HCF of: 1360 & 840 340 & 210 2040 & 1260 3400 & 2100 136 & 84 4760 & 2940 1360 & 420 680 & 840 2040 & 420 680 & 1260 3400 & 420 680 & 2100 4760 & 420 680 & 2940
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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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