how can I message josah to thank him a few changes here and there to my latest code and I might be able to beat GIMPS, thank you as well I had to get a new compiler my old one ran out of trial time. I know how to write it to file , but I still need to have bigger integers( for some reason my new compiler says the limit for int is 2^32 lol but I want bigger integers to test if I get that working GIMPS might have a war lol. I ve learned how to define mersennes in the head so I will only produce mersenne numbers to check if they are prime, any help for the integers part would be grand as you have helped me if I get the record i'll send it as your record as well.