825*2^1785134-1 is prime

623*2^1787546-1 is prime

Added [URL="https://primes.utm.edu/primes/page.php?id=134315"]134315[/URL] : 569*2^2021884-1 (608651 digits)

Added [URL="https://primes.utm.edu/primes/page.php?id=134323"]134323[/URL] : 559*2^2023437-1 (609118 digits)

805*2^1791273-1 is prime

773*2^1792454-1 is prime

Added [URL="https://primes.utm.edu/primes/page.php?id=134329"]134329[/URL] : 425*2^2026610-1 (610074 digits)

Added [URL="http://primes.utm.edu/primes/page.php?id=134330"]134330[/URL] : 653*2^1792810-1 (539693 digits)

977*2^1800512-1 is prime

[QUOTE=gd_barnes;612551]977*2^1800512-1 is prime[/QUOTE]
but [URL="https://primes.utm.edu/primes/page.php?id=134348"]977*2^1800512[/URL] ... not.

[QUOTE=Batalov;612557]but [URL="https://primes.utm.edu/primes/page.php?id=134348"]977*2^1800512[/URL] ... not.[/QUOTE]
I knew it the second I hit submit and so submitted another correctly right after. It's the 2nd time I've done that in 15 years. :-) Not too bad I guess. Looks like it's been permanently deleted now. Unfortunately there is no "delete" once you hit submit even though it hasn't started primality testing yet. That would be a nice feature.