now
(3^512)^2 - 1^2 = (3^512 + 1)(3^512-1)
similarly break down the power of 512 further ....after repeated application of the formula we end up with
(3^512+1)(3^256+1)(3^128+1)(3^64+1)(3^32+1)(3^16+1)(3^8+1)(3^4+1)(3^2+1)(3^1+1)(3^1-1)
each term...
7
7
