title: Automatic integer factoring for 310-digit decimal numbers
body: <p>Is here some software, which is capable of factoring a 310-digit decimal integer number into primes? There was msieve, which I successfully used for 120-digit factoring, but 310 digit is greater than max allowed number of 308-digit for msieve.</p>
  
  <p>PS: the number to factor have 2 prime factors, and p-1,p+1 and other easy and fast factoring methods are likely to fail.</p>
  
  <p>UPDATE: Seems only GGNFS will work and there are some python scripts to automate factoring.</p>