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85
170 255 / 3 = 85 85 x 2 = 170
255 = 51 x 5 so 51 is GCF
510.
3 255 = 3 x 5 x 17 243 = 35 gcf = 3
The greatest common factor of 68 and 170 is 34.
The LCM of 170 and 255 is 510.
The GCF is 1.
The GCF is 2.
The GCF is 5
The GCF for 102 136 170 is 34.
The GCF of 255 and 256 is 1.
The GCF is: 2