Sierp base 3 - mini-drive Ia

[Mini-Geek]

37-38 complete, 1 prime already reported. Just one prime...just...one...lone...Cedric got five and henry got two already and I get one. Oh well, that's the randomness of prime distribution for you...
Do you need the lresults?
Edit: Ok, I attached the lresults.

[gd_barnes]

Originally Posted by Mini-Geek

37-38 complete, 1 prime already reported. Just one prime...just...one...lone...Cedric got five and henry got two already and I get one. Oh well, that's the randomness of prime distribution for you...
Do you need the lresults?

Yes, if people can post their lresults, that would be helpful.

Thanks.

[ValerieVonck]

Already 1 new prime to report

20436272 38146

[Lennart]

40-41 complete
Primes
23727272 40665
16939082 40745

/Lennart

[Lennart]

39-40 complete
Primes
32565374 39621
30032708 39872
47807146 39904

/Lennart

[Lennart]

41k-42k
Primes
20436272 41381
25095394 41459
27704962 41561
20258534 41706
19450274 41878

/Lennart

[gd_barnes]

I have posted all primes found recently. The 9 k's will be removed from the remaining files shortly.

Lennart, on this effort, I'm only showing the lowest prime found for each k to help in 'balancing' the # of k's remaining. 2 of your k's that had primes already had lower primes so they are not being shown in post 1 of this thread.

For everyone, I like to see the lowest prime found for each k so if someone finds a prime in a higher n-range than what you are searching, please leave that k in your file(s) to see if a lower prime is found. Of course it can be removed if you are searching a higher n-range.

Edit: All k's with primes have now been removed.


Gary

[michaf]

Gary, can you send me the sieve file,
I have one core freed up now :)

Also: what is the ideal sieve depth?

thanks :)

[em99010pepe]

Taking 42-50 (8 files). ETA ~24 hours.

[gd_barnes]

Originally Posted by michaf

Gary, can you send me the sieve file,
I have one core freed up now :)

Also: what is the ideal sieve depth?

thanks :)

Well, I goofed. I accidently deleted my n=50K-100K file that was sieved to P=100G. Fortunately I have a backup file but unfortunately it is only sieved to P=20G. I'm in the middle of sieving it to P=60G on 2 cores and will be done with that on Friday.

I could send you the file sieved to P=20G now and it would only take a little bit longer to sieve for P>60G. Or I could send you a file sieved to P=60G on Friday. Let me know which you'd prefer.

My estimate of the optimum sieve depth for breaking off n=50K-75K would be around P=150-175G but it could be lower...around P=120-130G.

The optimum is not going to come in much higher than the optimum for n=25K-50K (P=100G) because there are going to be many less k's remaining.

Do you want to sieve from P=60G to P=~150G-175G yourself or do you need help?

I assume you know to use srsieve for sieving. If you use more than one core, be sure and use the -f switch for all instances so that it will write out factors for all of them for later removal.


Gary

[ValerieVonck]

38K-39K Range Complete 1 prime found