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2021-07-24, 19:58   #1398
gd_barnes

May 2007
Kansas; USA

244658 Posts

Quote:
 Originally Posted by MisterBitcoin About R7. k=<2M is now at n=970K so a few more weeks. k=2M-10M is also coming along very well. I found the following primes: Code: 7115634*7^273464-1 8354966*7^288802-1 9871172*7^367701-1 I will extend the range up to n=500K. Considering to go for a new and better sieved sieve file after passing n=400K.
Please post the primes for k<=2M.

Please give the test depth for k=2M-10M.

I can't update the statuses on the pages without both primes and test depths.

Thanks!

2021-07-25, 07:07   #1399
MisterBitcoin

"Nuri, the dragon :P"
Jul 2016
Good old Germany

22×211 Posts

Quote:
 Originally Posted by gd_barnes Please post the primes for k<=2M. Please give the test depth for k=2M-10M. I can't update the statuses on the pages without both primes and test depths. Thanks!

k<2M found no additional primes; only that one from a while ago.
k=2M-10M is now at n=368K.

 2021-08-06, 12:49 #1400 MisterBitcoin     "Nuri, the dragon :P" Jul 2016 Good old Germany 34C16 Posts R15 reached n=50K, found 41 primes. (this work only took about 1,5 months; but ehh problems.) Anyway in the range 10M-20M are now 45 k´s remaining and running towards n=100K. Results attached.
2021-08-07, 03:40   #1401
gd_barnes

May 2007
Kansas; USA

7×11×137 Posts

Quote:
 Originally Posted by MisterBitcoin Results attached.

Nothing attached. :-)

2021-08-07, 07:21   #1402
MisterBitcoin

"Nuri, the dragon :P"
Jul 2016
Good old Germany

22·211 Posts

Quote:
 Originally Posted by gd_barnes Nothing attached. :-)

Attached Files
 n=25K-50K.zip (2.23 MB, 49 views)

2021-08-16, 18:27   #1403
MisterBitcoin

"Nuri, the dragon :P"
Jul 2016
Good old Germany

22·211 Posts

Quote:
 Originally Posted by MisterBitcoin k<2M found no additional primes; only that one from a while ago. k=2M-10M is now at n=368K.

R7 k<2M is now tested up to n=1000000 with no other primes found. Releasing this range.
Attached Files
 R7_k2m_results.zip (1.41 MB, 44 views)

 2021-09-01, 17:39 #1404 MisterBitcoin     "Nuri, the dragon :P" Jul 2016 Good old Germany 22·211 Posts R7 k=700M-800M reached n=25K. 2063 k´s are remaining in this range; releasing this range. Results can be found here Range 800M-900M is at 19,2k and 900M-1G is at 17,6K. Range 2M-10M is now at n=399k (a few more to pass 400K), found two primes since last update Code: 4780002*7^368053-1 is prime! (311048 decimal digits, P = 3) Time : 700.341 sec. (shortly after the update!) 5333174*7^380887-1 is prime! (321894 decimal digits, P = 5) Time : 726.703 sec I will do a new sieve file soon, hoping it will speed things up
 2021-11-02, 07:06 #1405 MisterBitcoin     "Nuri, the dragon :P" Jul 2016 Good old Germany 22·211 Posts R7, k-range 800M-900M reached n=25K; results are here. 2108 k´s remaining in that range. R7, k-range 900M-1e9 reached n=25K, results are here. 2075 k´s remaining in that range. Releasing both ranges. I doubt the effort for 1e9 up to 2e9 is worth at this moment, so i will focus on other things. R7, k-range 2M-10M is now at 442K with two new primes. Target is still n=500K but i dont think I can reach that until the years end. Code: 3885264*7^419940-1 is prime! (354898 decimal digits, P = 3) Time : 917.120 sec. 9012942*7^425310-1 is prime! (359436 decimal digits, P = 3) Time : 932.953 sec. Funny how they appear so close sometimes, see 9871172*7^367701-1 and 4780002*7^368053-1. The prime before them was at 280K. Last fiddled with by MisterBitcoin on 2021-11-02 at 07:08 Reason: *sigh

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