The GCF is 27.
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The GCF of 26 and 297 is 1.
The GCF is 27.
The Greatest Common Divisor of 297, 891, 2187 is 27.
Since 27 is not a factor of 279, there is a problem with this problem. But if one of the numbers is 297, the other is 189.
1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1617, 2079, 4851, 14553