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The GCF of 420 and 128 is 4.
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Find HCF of: 840 & 256 210 & 64 1260 & 384 2100 & 640 2940 & 896 840 & 128 420 & 256 1260 & 128 420 & 384 2100 & 128 420 & 640 2940 & 128 420 & 896
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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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