See also
Lucas Sequence, Pollard p-1 Method, Prime Factorization Algorithms
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References
Riesel, H. Prime Numbers and Computer Methods for Factorization, 2nd ed. Boston, MA: Birkhäuser,
p. 177, 1994.Williams, H. C. "A 
Method of Factoring." Math. Comput. 39,
225-234, 1982.
Referenced on Wolfram|Alpha
Williams p+1 Factorization Method
Cite this as:
Weisstein, Eric W. "Williams p+1 Factorization Method." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/WilliamspPlus1FactorizationMethod.html