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Anonymous
2639 = 203 x 1378 = 6 x 13The greatest factor is 2639 x 6 = 15834
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The GCF is 13.
2639 = 7 x 13 x 2978 = 2 x 3 x 13GCF = 13
The greatest common factor (GCF) is: 6
The GCF of 78 and 104 is 26.
3.
78 = 13 x 3 x 2 Therefore, the greatest prime factor of 78 is 13.
It is: 2