Solutions by everydaycalculation.com
The GCF of 18 and 639 is 9.
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Find HCF of: 36 & 1278 54 & 1917 6 & 213 90 & 3195 126 & 4473 36 & 639 18 & 1278 54 & 639 18 & 1917 90 & 639 18 & 3195 126 & 639 18 & 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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