Found a factor? Post it here. - Page 124

newalex · 2019-03-16, 20:00

I am using 48 cores for ECM work in 320000-360000 range with a major goal to complete all unfactored <500000 to 30-digits level.
4 more cores are working on numbers with known factors in 10000-11000 range.

lycorn · 2019-03-16, 20:13

Right, That´s a considerable amount of computing power. Hope you´ll find many more factors along the way

.
I´m working a bit further up: 600k and 800k, also with B1=250000. My success rate has been rather low, though, which is normal considering I have only 8 cores at it, and four of them belong to a 10-year old i5-750

newalex · 2019-03-16, 20:45

For now 15 factors was found in ~130 attempts.
Good luck to you, too.

Prime95 · 2019-03-16, 22:06

Quote:

Originally Posted by newalex

4 more cores are working on numbers with known factors in 10000-11000 range.

Please tell me you are using GMP-ECM for stage 2.

lycorn · 2019-03-16, 23:04

Yes, that is good advice. For such small exponents there is a lot to gain. One of these days I will resume my "sub 10K" crusade and then I'll be using GMP-ECM once again.
After all, there are just 64 left to factorize... LOL

newalex · 2019-03-17, 08:17

Quote:

Originally Posted by Prime95

Please tell me you are using GMP-ECM for stage 2.

I plan to do so but not yet. Will I need to email you the results in this case? Or there is some way to submit it using manual testing results form?

Prime95 · 2019-03-17, 11:12

Quote:

Originally Posted by newalex

I plan to do so but not yet. Will I need to email you the results in this case? Or there is some way to submit it using manual testing results form?

You will need to email me exponents, curve counts, and bounds. Later I can show you how to use the manual forms.

newalex · 2019-03-17, 12:17

ok ,thanks.

harlee · 2019-03-17, 12:24

P-1 found a factor in stage #2, B1=330000, B2=8745000, E=12.
UID: harlee/i5-5250U_1600, M18309659 has a factor: 324338066454357946195307829957109799 (P-1, B1=330000, B2=8745000, E=12)

117.965 bits

k= 2 × 43 × 353 × 1063 × 51713 × 131839 × 142421 × 565319

Jwb52z · 2019-03-18, 05:07

P-1 found a factor in stage #1, B1=685000.
UID: Jwb52z/Clay, M90890743 has a factor: 417698754453203763044685289 (P-1, B1=685000)

88.433 bits.

Thecmaster · 2019-03-18, 15:07

I have just started and found a factor on my 8 TF :D

M92700737 Factor: 11692583137317592272401 / TF: 73-74

2019-03-16, 23:04	#1358
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 2×5×157 Posts	Yes, that is good advice. For such small exponents there is a lot to gain. One of these days I will resume my "sub 10K" crusade and then I'll be using GMP-ECM once again. After all, there are just 64 left to factorize... LOL Last fiddled with by lycorn on 2019-03-16 at 23:07

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2019-03-16, 20:00	#1354
newalex Feb 2019 2⁴ Posts	I am using 48 cores for ECM work in 320000-360000 range with a major goal to complete all unfactored <500000 to 30-digits level. 4 more cores are working on numbers with known factors in 10000-11000 range.

2019-03-16, 20:13	#1355
lycorn "GIMFS" Sep 2002 Oeiras, Portugal 2×5×157 Posts	Right, That´s a considerable amount of computing power. Hope you´ll find many more factors along the way . I´m working a bit further up: 600k and 800k, also with B1=250000. My success rate has been rather low, though, which is normal considering I have only 8 cores at it, and four of them belong to a 10-year old i5-750

2019-03-16, 20:45	#1356
newalex Feb 2019 16₁₀ Posts	For now 15 factors was found in ~130 attempts. Good luck to you, too.

2019-03-17, 12:17	#1361
newalex Feb 2019 2⁴ Posts	ok ,thanks.

2019-03-17, 12:24	#1362
harlee Sep 2006 Odenton, MD, USA 191 Posts	P-1 found a factor in stage #2, B1=330000, B2=8745000, E=12. UID: harlee/i5-5250U_1600, M18309659 has a factor: 324338066454357946195307829957109799 (P-1, B1=330000, B2=8745000, E=12) 117.965 bits k= 2 × 43 × 353 × 1063 × 51713 × 131839 × 142421 × 565319

2019-03-18, 05:07	#1363
Jwb52z Sep 2002 5·13² Posts	P-1 found a factor in stage #1, B1=685000. UID: Jwb52z/Clay, M90890743 has a factor: 417698754453203763044685289 (P-1, B1=685000) 88.433 bits.

2019-03-18, 15:07	#1364
Thecmaster "Arvid Björklin" Apr 2016 Pitea, Sweden 46₁₆ Posts	I have just started and found a factor on my 8 TF :D M92700737 Factor: 11692583137317592272401 / TF: 73-74