The GCF is 46.
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It is not possible to give a sensible answer to this question. The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question!
The highest common factor of 46 and 138 is 46Factorization method:46 = 2×23138 = 2×3×23highest common factor = 2×23 = 46Alternative (modular) method:138 mod 46 = 0so 46 is the highest common factor.
The greatest common factor of 31 and 46 is 1.
The greatest common factor of 32 and 46 is 2.
The greatest common factor of 46 and 69 is 23.