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The GCF of 809 and 840 is 1.
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Find HCF of: 1618 & 1680 2427 & 2520 4045 & 4200 5663 & 5880 1618 & 840 809 & 1680 2427 & 840 809 & 2520 4045 & 840 809 & 4200 5663 & 840 809 & 5880
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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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