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The GCF of 61 and 81 is 1.
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Find HCF of: 122 & 162 183 & 243 305 & 405 427 & 567 122 & 81 61 & 162 183 & 81 61 & 243 305 & 81 61 & 405 427 & 81 61 & 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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