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The GCF of 21 and 53 is 1.
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Find HCF of: 42 & 106 63 & 159 105 & 265 147 & 371 42 & 53 21 & 106 63 & 53 21 & 159 105 & 53 21 & 265 147 & 53 21 & 371
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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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