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The GCF of 66 and 81 is 3.
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Find HCF of: 132 & 162 198 & 243 22 & 27 330 & 405 462 & 567 132 & 81 66 & 162 198 & 81 66 & 243 330 & 81 66 & 405 462 & 81 66 & 567
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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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