[QUOTE=Mattyp101;250620]34*1029^106501+1 is prime.

Conjecture proven.[/QUOTE]

Nice prime and proof on our largest tested base Matt! :smile:

[QUOTE=gd_barnes;250622]My I7 is booked for about 2 more weeks with Riesel-Sierp base 2 even k followed by Riesel-Sierp base 16.[/QUOTE]
Ah, okay, in that case I'll leave it for someone else. :smile:

I've checked with Wilfrid Keller that the bases that they've searched (as early as in 2006 and even 1999) were only b=11 (mod 12), - for the reason that they can produce primes that "divide Phi(b^m,2)". They haven't searched S461 (k=2), so there's no duplication of effort.

S785
 

S785 tested n=50K-100K

[URL]http://primes.utm.edu/primes/page.php?id=98406[/URL]
112*785^84676+1 is prime

8*785^n+1 changes into a 1ker with a weight of 588

Results emailed - Base released

Due to several machines running subranges parallelly I found this rather unnecessary but large prime:

36*1029^91749-1 is prime!

S853
 

S853 tested n=25K-100K

[URL]http://primes.utm.edu/primes/page.php?id=99015[/URL]
42*853^91322+1 is prime

106*853^n+1 is now a 1ker with a weight of 987

Results emailed - Base released

S889
 

S889 tested n=25K-100K

174*889^38647+1 is prime

[URL]http://primes.utm.edu/primes/page.php?id=99222[/URL]
534*889^71765+1 is prime

Conjecture proven - Results emailed

A nice ck of 624 and 3 in a row, S888, S889, S890

S953
 

S953 tested n=25K-100K

[URL]http://primes.utm.edu/primes/page.php?id=99253[/URL]
14*953^97789+1 is prime

8*953^n+1 is now a 1ker with a weight of 1155

Results emailed - Base released

[URL]http://primes.utm.edu/primes/page.php?id=99282[/URL]

174*1021^121880-1 is prime!

R272
 

[URL]http://primes.utm.edu/primes/page.php?id=99279[/URL]

6*272^148426-1 is prime

Conjecture proven

Results emailed - Base released

This is our 3rd proven conjecture today.:cool:

Nice one Peter.:beer:

Vmod found:

802*148^114769+1 is prime

S148 is now a 1ker.