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The GCF of 21 and 170 is 1.
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Find HCF of: 42 & 340 63 & 510 105 & 850 147 & 1190 42 & 170 21 & 340 63 & 170 21 & 510 105 & 170 21 & 850 147 & 170 21 & 1190
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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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