256
(x - 1)(x + 1)
(2x - 1)(2x + 1)
So x4 - 1 is the difference of squares, so x4 - 1 = (x2 - 1)(x2 + 1) = (x + 1)(x - 1)(x2 + 1).
9(2x - 1)(2x + 1)
x(x - 1)
x(x + 1)(x - 1)
(x2 + 1)(x2 - 2)
(x + 1)(x - 1)
(4x - 1)(4x + 1)
The greatest common factor of 286 and 251 is 1.
256
Common factors of 286 and 242 are: 1, 2, 11, and 22.
256 to the negative one-half power = 0.0625
(2x - 1)(x + 4)
The GCF of 255 and 256 is 1.
(2x - 1)(4x + 1)