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The GCF of 18 and 61 is 1.
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Find HCF of: 36 & 122 54 & 183 90 & 305 126 & 427 36 & 61 18 & 122 54 & 61 18 & 183 90 & 61 18 & 305 126 & 61 18 & 427
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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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