Message boards : News : ESP Mega Prime!

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On 3 April 2018, 15:55:55 UTC, PrimeGrid’s Extended Sierpinski Problem Prime Search project found the Mega Prime:

193997*2^11452891+1



The prime is 3,447,670 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 23th overall. This find eliminates k=193997; 10 k's remain in the Extended Sierpinski Problem.



The discovery was made by Tom Greer (tng*) of the United States using an Intel(R) Xeon(R) E5-2620 v3 CPU @ 2.40GHz with 16GB RAM, running Microsoft Windows 10. This computer took about 3 hours 45 minutes to complete the primality test using multithreaded LLR. Tom is a member of the Sicituradastra. team.



The prime was verified on 4 April 2018, 00:17:20 UTC by Gary Bauer (GDB) of the United States using an Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz with 16GB RAM, running Microsoft Windows 10. This computer took about 2 hours 25 minutes to complete the primality test using multithreaded LLR.



For more details, please see the official announcement.

It looks like prime numbers are over )

It looks like prime numbers are over )

That is wrong. There were four megaprimes just recently, actually.



Don't forget that since the beginning of the year, the criteria for a newspost about a prime have been changed, resulting in less frequent posts. The primes are still found.

It looks like prime numbers are over )

Oh. Have we finished? I'll go back to SETI then. Hope it's not a Tuesday.



...

Don't worry, I just made a joke because we had no new mega prime almost for two months )