S10 tested till n=990000
R10 tested till n=880000

BTW: after recent find I release 7019*10^n-1 @ n= 882449 :smile:

An interesting side note about R10: If we are able to find a prime for the final k, it would shatter 3 CRUS records at once:

1. The largest prime. The current largest is 881313 digits by the recent R10 prime.
2. The largest conjecture proven; 10176. The current largest is 2414 by R49.
3. The most consecutive bases proven; 7 by R8 to R14. The current most consecutive is 6 by S898 to S903.

If found before the final prime for R10, the final prime for S10 would only shatter the first two above. Breaking the 3rd one would also require one final S9 prime at n>1M to prove S8 to S14.

R15 - S15
 

Reserving R15 3M-5M to n=50K

Reserving S15 2M-5M to n=50K

R15
 

R15-3M-5M tested n=25K-50K - 5 primes found - 8 remain for the range

3060138*15^27826-1
3317788*15^31258-1
4426172*15^32892-1
3366676*15^34917-1
3256532*15^46971-1

Results emailed - range released

S15
 

S15-2M-5M tested n=25K-50K - 9 primes found - 10 remain for the range

3301746*15^28287+1
2976456*15^28467+1
4103536*15^28643+1
2455136*15^33944+1
4133648*15^36969+1
3548540*15^38387+1
3757588*15^45882+1
3617258*15^46852+1
3484692*15^49551+1

Results emailed - range released

[QUOTE]S10 tested till n=990000
R10 tested till n=880000 [/QUOTE]
What is range of K that is tested in 10^n-1?
I ask this since I made sieve from 2*10^n-1 from n=230000 - 1100000
If you are already search that range I will not "throw away" my CPU power :)

[QUOTE=pepi37;347105]What is range of K that is tested in 10^n-1?
I ask this since I made sieve from 2*10^n-1 from n=230000 - 1100000
If you are already search that range I will not "throw away" my CPU power :)[/QUOTE]

Just [URL="http://www.noprimeleftbehind.net/crus/Riesel-conjectures.htm"]4421*10^n-1[/URL] and [URL="http://www.noprimeleftbehind.net/crus/Sierp-conjectures.htm"]7666*10^n+1[/URL]. Those are the only k's remaining to prove the Riesel/Sierp conjectures for base 10.

Thanks!
So my search can continue :))

[QUOTE]S10 tested till n=990000
R10 tested till n=880000 [/QUOTE]Those 2 k's (4421*10^n-1 and 7666*10^n+1) are already reserved by cruelty to an unknown upper limit.

Hi. I have a question about R15.
I'm wondering if any work has been done on it above the k=5M mark.