Package de.tilman_neumann.jml.factor.pollardRho

Class PollardRhoBrent31

java.lang.Object
de.tilman_neumann.jml.factor.FactorAlgorithm
de.tilman_neumann.jml.factor.pollardRho.PollardRhoBrent31
public class PollardRhoBrent31
extends FactorAlgorithm
Brents's improvement of Pollard's Rho algorithm, following [Richard P. Brent: An improved Monte Carlo Factorization Algorithm, 1980]. 31 bit version.

  • Field Summary

    Fields inherited from class de.tilman_neumann.jml.factor.FactorAlgorithm

    NUM_PRIMES_FOR_31_BIT_TDIV, tdivLimit

  • Constructor Summary

    Constructors
    Constructor Description
    PollardRhoBrent31()  

  • Method Summary

    Modifier and Type Method Description
    int findSingleFactor​(int N)  
    java.math.BigInteger findSingleFactor​(java.math.BigInteger N)
    Find a single factor of the given N, which is composite and odd.
    java.lang.String getName()  
    static void main​(java.lang.String[] args)
    Test.

    Methods inherited from class de.tilman_neumann.jml.factor.FactorAlgorithm

    factor, factor, getDefault, searchFactors

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • PollardRhoBrent31

      public PollardRhoBrent31()

  • Method Details

    • getName

      public java.lang.String getName()
      Specified by:
      getName in class FactorAlgorithm
      Returns:
      The name of the algorithm, possibly including important parameters.

    • findSingleFactor

      public java.math.BigInteger findSingleFactor​(java.math.BigInteger N)
      Description copied from class: FactorAlgorithm
      Find a single factor of the given N, which is composite and odd.
      Specified by:
      findSingleFactor in class FactorAlgorithm
      Parameters:
      N - number to be factored.
      Returns:
      factor

    • findSingleFactor

      public int findSingleFactor​(int N)

    • main

      public static void main​(java.lang.String[] args)
      Test.
      Parameters:
      args - ignored