1. New primality criteria and factorizations of 2^{𝑚}±1;Brillhart, John;Math. Comp.,1975
2. [2] C. Caldwell, Review of the Cruncher PC plug-in board, J. Recreational Math. 25 (1993), 56–57.
3. [3] \bysame, The largest known primes, updated regularly and is available on request. Tel. (901) 587–7360, E-mail: caldwell@UTmartn.bitnet
4. The Book of Prime Number Records