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