[QUOTE=EdH;357532]Another index down and now there's a c149 at i5156.

Just a protocol query - should a post be made each time another index is factored, or is it enough to inform the db?

My system is set to automatically submit the factors and it may be quite some time before I notice, so I can post here.[/QUOTE]My thought would be that sporadic progress reports are OK, unless they're more significant than a couple of days.

And let us know if you hit a significant roadblock so anyone with spare horsepower can throw some curves at the composite... And definitely let us know if it manages to drop the '3'!

What sort of ECM has been done on the C149?

[QUOTE=Jayder;357669]What sort of ECM has been done on the C149?[/QUOTE]
[code]
240@2e3 666@11e3 1177@5e4 756@25e4 1340@1e6
2480@3e6 3980@11e6 2000@43e6 1996@11e7 200@2e8[/code]I'm a quarter of the way into sieving right now, at about seven hours wall time. I got what looked like a good E-score poly, early on, but it isn't really producing much over 2:1 (and, seems slow to get those):
[code]
expecting poly E from 4.85e-12 to > 5.58e-12
...
R0: -228068698365456203798456910867
R1: 4680322185839309
A0: 3549555056540004149137632540889975112080
A1: -65819641610372184687985483708388
A2: -24087912207459438992914212
A3: -900357079220039035
A4: 9615741194
A5: 60
skew 54072163.55, size 1.738e-14, alpha -7.420, combined = 5.995e-12 rroots = 3[/code]

[code]
prp69 factor: 641543882505385880738851781766110232149333253148056252387686962042751
prp80 factor: 57710485834889365193560020218946363641651756832846624687537738377448021585581323
[/code]

Found P42 at i5170 . Now at index 5173 with C133.

[QUOTE=kar_bon;357889]Found P42 at i5170 . Now at index 5173 with C133.[/QUOTE]
[code]Found probable prime factor of 45 digits: 233912517890844630265947926061711407640330221
[/code]And, now a c157 awaits at i5174 - hopefully, only briefly, but something is broken in my scripts and I must investigate...

Well, now it has a c170 at i5176...

-pm1 1e9 nothing

c170 at i5176
 

All 43e6 curves are done.
9000 110e6 curves +
4000 260e6 curves ~= t55. No factor.
Also, (an overkill) 4000 850e6 curves.

The number is ready for GNFS.

need a poly? ask for one in the relevant thread.

[CODE]Input number is 86493715643420583534343823875861532928077840293141944141392242150714620105785333494270370719352550381994424651383513977592873406245696390958987897584118183631899307240079 (170 digits)
Using B1=850000000, B2=15892628251516, polynomial Dickson(30), sigma=457699565
Step 1 took 3330266ms
Step 2 took 726565ms
********** Factor found in step 2: 4974515815052328262112056759286572830155594587799769130559
Found probable prime factor of 58 digits: 4974515815052328262112056759286572830155594587799769130559
Probable prime cofactor 17387363687074886304264149089734301879388872649742587176851486605820160786462315562032666688211440562376109967281 has 113 digits[/CODE]