Since 17 is a factor of 85, it is automatically the GCF.
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The greatest common factor of 85 and 255 is 85.
The greatest common factor of 34 and 85 is 17.The factors of 34 are: 1, 2, 17, 34The factors of 85 are: 1, 5, 17, 85The common factors are: 1, 17The Greatest Common Factor: GCF = 17
The greatest number which divides both 51 and 85 is 17. So, greatest common factor is 17.Alternate method:P.F. of 51 = 3x17P.F. of 85 = 5x17Clearly, from the P.F. of both numbers 17 is the greatest common factor.The GCF is 17.51 and 85's highest common factor is 17.
17 5 x 17 = 85 The GCF is 17.
The GCF of 34, 85, and 102 is 17.