Bases 6-32 reservations/statuses/primes - Page 97

Cruelty · 2013-07-01, 12:22

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

Cruelty · 2013-07-03, 08:27

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

gd_barnes · 2013-07-11, 07:01

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.

MyDogBuster · 2013-07-17, 13:04

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

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

MyDogBuster · 2013-07-22, 03:29

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

MyDogBuster · 2013-07-23, 10:42

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

pepi37 · 2013-07-23, 11:49

Quote:

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

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 :)

Mini-Geek · 2013-07-23, 11:57

Quote:

Originally Posted by pepi37

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 :)

Just 4421*10^n-1 and 7666*10^n+1. Those are the only k's remaining to prove the Riesel/Sierp conjectures for base 10.

pepi37 · 2013-07-23, 12:01

Thanks!
So my search can continue :))

MyDogBuster · 2013-07-23, 22:50

Quote:

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

Those 2 k's (4421*10^n-1 and 7666*10^n+1) are already reserved by cruelty to an unknown upper limit.

firejuggler · 2013-07-27, 18:36

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

2013-07-17, 13:04	#1060
MyDogBuster May 2008 Wilmington, DE 2²·23·31 Posts	R15 - S15 Reserving R15 3M-5M to n=50K Reserving S15 2M-5M to n=50K Last fiddled with by MyDogBuster on 2013-07-17 at 13:35 Reason: Added S15

2013-07-22, 03:29	#1061
MyDogBuster May 2008 Wilmington, DE 5444₈ Posts	R15 R15-3M-5M tested n=25K-50K - 5 primes found - 8 remain for the range 306013815^27826-1 331778815^31258-1 442617215^32892-1 336667615^34917-1 3256532*15^46971-1 Results emailed - range released

2013-07-23, 10:42	#1062
MyDogBuster May 2008 Wilmington, DE 2²×23×31 Posts	S15 S15-2M-5M tested n=25K-50K - 9 primes found - 10 remain for the range 330174615^28287+1 297645615^28467+1 410353615^28643+1 245513615^33944+1 413364815^36969+1 354854015^38387+1 375758815^45882+1 361725815^46852+1 3484692*15^49551+1 Results emailed - range released

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2013-07-01, 12:22	#1057
Cruelty May 2005 3130₈ Posts	S10 tested till n=990000 R10 tested till n=880000

2013-07-03, 08:27	#1058
Cruelty May 2005 1624₁₀ Posts	BTW: after recent find I release 7019*10^n-1 @ n= 882449

2013-07-11, 07:01	#1059
gd_barnes May 2007 Kansas; USA 29·359 Posts	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.

2013-07-23, 12:01	#1065
pepi37 Dec 2011 After milion nines:) 1,451 Posts	Thanks! So my search can continue :))

2013-07-27, 18:36	#1067
firejuggler Apr 2010 Over the rainbow 2606₁₀ Posts	Hi. I have a question about R15. I'm wondering if any work has been done on it above the k=5M mark.