Solutions by everydaycalculation.com
The GCF of 20 and 210 is 10.
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Find HCF of: 40 & 420 10 & 105 60 & 630 100 & 1050 4 & 42 140 & 1470 40 & 210 20 & 420 60 & 210 20 & 630 100 & 210 20 & 1050 140 & 210 20 & 1470
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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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