FACTORISATION |

61270495690759421281625584274655657260868460760319\ 84148279798226031515626369211302403342844679615718\ 89932818295946719878617880436942056883525512583193\ 82990948318104995562451058991269657342906712744287\ 91298474527796793829737067915624465318975470874259\ 86588524363443732340572982308396576265269454435373\ 89794263118791352651075907649398992427331262743457\ 5416399632333003427844564182540621165072646771998059 |

Can you factor the above 402 digit number? It is composed of two large prime numbers. The first correct factorisation sent to webmaster@mathematik.com wins 100 US Dollars. |

Finding algoritms to factor large numbers is a mathematical
challenge. RSA crytology is based on the fact that it is
difficult to factor a say 402 digit integer
which is the product of two large primes of 201 digits.
Still, a lucky hit is always possible. You can try your luck
rsp. your software at the above challenge. See the book "Prime Numbers and Computer Methods for Factorisation" by H. Riesel, Birkhäuser Verlag, for some factorisation algorithms. |

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