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The GCF of 640 and 4220 is 20.
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Find HCF of: 1280 & 8440 320 & 2110 128 & 844 1280 & 4220 640 & 8440 1920 & 4220 3200 & 4220 4480 & 4220
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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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