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* 2^n-1 where n is odd
* 2^n+1 where n is odd
* 2^n+1 where n=4k-2
 * $a^n \pm 1$ for $a = 2, 3, 5, 6, 7, 10, 11, 12$ and large exponents n [http://homes.cerias.purdue.edu/~ssw/cun/index.html]
 * $a^n \pm 1$ for $a ≤ 13$ and $a$ not a perfect number [http://wwwmaths.anu.edu.au/~brent/factors.html]
 * $2^n \pm 1$ for $n ≤ 100$ [http://www.euronet.nl/users/bota/medium-p.htm]
 * $p^p \pm 1$ where $p$ is a prime number and $p < 180$. [http://homes.cerias.purdue.edu/~ssw/bell/r1]

factorization_of_integers_of_special_forms (last edited 2008-11-14 13:41:51 by anonymous)