Last challenge for this year.
The Final Challenge of the 2017 Challenge series is upon us. The Winter Solstice Challenge will be a 3 day (72 hour) celebration on account of the winter solstice. The challenge is being offered on PrimeGrid's most successful sieve, the Proth Prime Search (Sieve) application. Come join us and warm yourself by the Solstice fires!
To participate in the Challenge, please select only the PPS (Sieve) project in your PrimeGrid preferences section. The challenge will begin 18 December 2017 16:28 UTC and end 21 December 2017 16:28 UTC.
Work unit must be downloaded on 18 Dec at 16:28 UTC time and finished by 21 Dec at UTC time.
CPU time is about 21 hours and less and GPU times at about 22 Seconds.
5 Days to go