Reserving R518 to n=300k (100-300k) for BOINC

9*990^23031-1 is prime, see [URL="https://www.rieselprime.de/ziki/Riesel_prime_small_bases_least_n"]https://www.rieselprime.de/ziki/Riesel_prime_small_bases_least_n[/URL], but this prime is currently not in the CRUS page.

[QUOTE=sweety439;543449]9*990^23031-1 is prime, see [URL]https://www.rieselprime.de/ziki/Riesel_prime_small_bases_least_n[/URL], but this prime is currently not in the CRUS page.[/QUOTE]


but if you check the page carefully the test was only done until 10k.

R962 tested to n=400k (200-400k)

nothing found, 6 remain

Results emailed - Base released

Reserving S832 to n=400k (200-400k) for BOINC

Reserving R550 to n=300k (100-300k) for BOINC

S537
 

Reserving S537 to n=10K

Reserving S694 to n=300k (100-300k) for BOINC

Reserving S833 to n=300K for Ian and me.

[QUOTE=rebirther;543451]but if you check the page carefully the test was only done until 10k.[/QUOTE]

Really? On [URL="http://www.noprimeleftbehind.net/crus/vstats_new/crus-unproven.htm"]this[/URL] page R990 isn't even existent

9*990^23031-1 was found by Gary on 2019-06-07, see [url='https://www.mersenneforum.org/showpost.php?p=518762&postcount=93']here[/url].
k*b^n-1 was tested there for k<=12, b<=1030 and n<=25k for a different purpose, not CRUS.