Sierp base 16 - team drive #1

[tnerual]

Originally Posted by axn1

Well, there has been a slight speed improvement after 3.5; nothing earth-shattering, about 5-7% (for base-2 as well as non-base-2).

finally i'm still using the llrnet but with a work around ...

i took the knpairs, multiplied the exponent by 4 and changed the base to 2 ..
tests are going 4 times faster !

[geoff]

58582*16^40601+1 is prime!

[mdettweiler]

Originally Posted by axn1

Well, there has been a slight speed improvement after 3.5; nothing earth-shattering, about 5-7% (for base-2 as well as non-base-2).

Oh, I forgot! According to LLR's changelog, the feature that automatically converts power-of-2 bases to base 2 was added 3.5.1! At least you can work around it by converting the sieve file to base 2. Though it would be nice if a new LLRNet based on the newer LLR could be released.

[kar_bon]

49860*16^50809+1 is prime! (61185 digits)

[gd_barnes]

Great prime finding day! 5 total so far.

On primes found in higher ranges than what others are searching at the moment, (i.e. the n=50809 prime where others are searching n<50K) if people don't mind leaving the k in their lower search-ranges, I would REALLY appreciate it. I'd like to think that we found the lowest prime possible for each k and it will also correlate with my top-10 lowest k-value primes list for each k on the web pages. Just me being my anal retentive self. It shouldn't make much difference at this low n-value. Of course they can be removed at your discretion from any n-range that is higher.

I'm currently in the slow process of putting together a list of primes for all k's for both sides of all bases that have been searched so far. We'll need it for historical record as the conjectures are proven or nearly proven.

It'll be later tonight (CST US) before I can get the k's removed from the higher n-ranges for the 2 primes found here. If you reserve one, as usual, you can use srfile to remove k=49860 and 58582 from them.


Thanks,
Gary

[mdettweiler]

Originally Posted by gd_barnes

Great prime finding day! 5 total so far.

On primes found in higher ranges than what others are searching at the moment, (i.e. the n=50809 prime where others are searching n<50K) if people don't mind leaving the k in their lower search-ranges, I would REALLY appreciate it. I'd like to think that we found the lowest prime possible for each k and it will also correlate with my top-10 lowest k-value primes list for each k on the web pages. Just me being my anal retentive self. It shouldn't make much difference at this low n-value. Of course they can be removed at your discretion from any n-range that is higher.

Oh, sorry. I removed it before I even got to reading your post--and then promptly deleted the original file. So unfortunately I can't leave it in. However, if you'd like to search the n's remaining in my range for that k, the last n for that k that I tested in my range (47K-50K) was n=47819.

Hope this helps!

[tnerual]

17970*2^158160+1 is prime! Time : 100.0 sec.

range 35k-40k finished (mix of base 16 and base 2 results in file)

i take 53k-56k

[kar_bon]

two primes in this range:
49860*16^50809+1 (mentioned before)
19465*16^51462+1 (new)

taking 56k-58k

[gd_barnes]

Originally Posted by tnerual

17970*2^158160+1 is prime! Time : 100.0 sec.

range 35k-40k finished (mix of base 16 and base 2 results in file)

i take 53k-56k

Good thinking on converting to base 2. It looks like just about everyone got in on the act today. Great work everyone! 7 total primes by 6 different people in 24 hours. On the team effort; 4 primes by 3 different people.

Originally Posted by kar_bon

two primes in this range:
49860*16^50809+1 (mentioned before)
19465*16^51462+1 (new)

taking 56k-58k

Nice work Karsten! With your resources, feel free to take 2 or 3 ranges at a time if you want to. I'll be shortly updating the files to exclude the 4 primes found today for the team effort.

Originally Posted by Anonymous

Oh, sorry. I removed it before I even got to reading your post--and then promptly deleted the original file. So unfortunately I can't leave it in. However, if you'd like to search the n's remaining in my range for that k, the last n for that k that I tested in my range (47K-50K) was n=47819.

Hope this helps!

Not a problem. I'm not quite so anal as to worry about such a small range for a single k. Thanks for letting me know.


Gary

[kar_bon]

range 56k-58k complete, no primes

taking 58k-60k

[geoff]

62802*16^42004+1 is prime!