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The GCF of 648 and 639 is 9.
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Find HCF of: 1296 & 1278 1944 & 1917 216 & 213 3240 & 3195 4536 & 4473 1296 & 639 648 & 1278 1944 & 639 648 & 1917 3240 & 639 648 & 3195 4536 & 639 648 & 4473
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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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