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-   -   Bases 251-500 reservations/statuses/primes (https://www.mersenneforum.org/showthread.php?t=12993)

pepi37 2020-08-30 07:48

[QUOTE=sweety439;555421][URL="http://factordb.com/index.php?id=1100000000878680659"]6*354^25561-1[/URL] is composite[/QUOTE]


You are right, prime is just few digits above


Starting N+1 prime test of 6*354^25565-1
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, a = 3
6*354^25565-1 may be prime. Starting Lucas sequence...
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, P = 3
6*354^25565-1 may be prime, trying to compute gcd's
6*354^25565-1 may be prime, but N divides U((N+1)/59), P = 3
Restarting Lucas sequence with P = 5
Using FMA3 FFT length 18K, Pass1=384, Pass2=48, clm=2, P = 5
6*354^25565-1 may be prime, trying to compute gcd's
U((N+1)/59) is coprime to N!
[B][COLOR=Red]6*354^25565-1 is prime! (65167 decimal digits, P = 5) Time : 84.596 sec.[/COLOR][/B]

gd_barnes 2020-08-30 08:26

Nice catch guys! Typo on the page. Now corrected.

rebirther 2020-08-30 10:04

S446 tested to n=300k (100-300k)

1 prime found, 6 remain

Results emailed - Base released

matzetoni 2020-08-30 15:58

releasing S342 (n=100k-200k)
 
1 Attachment(s)
I have finished S342 from n=100k to 200k and will release this base. I found 1 prime:


246*342^168008+1 is prime! (425740 decimal digits)


Sadly a bit too small for T5K, but still nice. Six k's are left now. Residues are in the attached zip file.

gd_barnes 2020-09-01 09:40

S495 is complete to n=10K; 1478 primes were found for n=2500-10K; 1768 k's remain; base released.

gd_barnes 2020-09-03 06:24

Reserving R394 to n=300K for Ian and me.

rebirther 2020-09-03 17:34

S402 tested to n=500k (400-500k)

nothing found, 1 remain

Results emailed - Base released

rebirther 2020-09-04 15:39

Reserving R337 to n=300k (200-300k) for BOINC

Reserving R409 to n=300k (200-300k) for BOINC

rebirther 2020-09-09 09:42

S256 tested to n=1M (800k-1M)

nothing found, 1 remain

Results emailed - Base released

rebirther 2020-09-09 14:52

Reserving S328 to n=1M (900k-1M) for BOINC

MisterBitcoin 2020-09-09 17:57

1 Attachment(s)
Its been overdue by months now, but i have an update for R312. I forgot about this reservation for nearly 6 months now. :c


However i have attached all found primes so far up to n=9000. Testing is now at 9,3K and this time i wont forget it. ~~hopefully~~
(there might be a few k´s that have 2 primes in it, i looked into the ini today and saw i wasnt using the "StopOnPrimedk" option)


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