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The GCF of 21 and 1665 is 3.
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Find HCF of: 42 & 3330 63 & 4995 7 & 555 105 & 8325 42 & 1665 21 & 3330 63 & 1665 21 & 4995 105 & 1665 21 & 8325 147 & 1665
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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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