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The GCF of 20 and 644 is 4.
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Find HCF of: 40 & 1288 10 & 322 60 & 1932 100 & 3220 140 & 4508 40 & 644 20 & 1288 60 & 644 20 & 1932 100 & 644 20 & 3220 140 & 644 20 & 4508
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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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