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The GCF of 1980 and 78 is 6.
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Find HCF of: 3960 & 156 990 & 39 5940 & 234 660 & 26 9900 & 390 3960 & 78 1980 & 156 5940 & 78 1980 & 234 9900 & 78 1980 & 390 1980 & 546
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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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