I'm finishing up ECM on 48847^37-1 and will start SNFS tonight.
Then I will move to the 8 - C170s.

OK, I'll leave 48847^37-1 to you and start on the C180s.

So reserving:
(41719^41-1)/41718 (185 digits)
(42017^41-1)/42016 (185 digits)

Chris

There are still a few C160s unclaimed.

2137166671^19-1 (C168)
49169^37-1 (C169)
941623117^19-1 (C162)

[QUOTE=RichD;469390]There are still a few C160s unclaimed.

2137166671^19-1 (C168)
49169^37-1 (C169)
941623117^19-1 (C162)[/QUOTE]

49169^37-1 is now factored through ECM.
p43= 1661267604335356263058956914861437468385021

A small update on [URL="http://www.factordb.com/index.php?query=8178376117%5E23-1"]8178376117^23-1[/URL]. I have passed 100% of the estimated minimum relations, but alas, it is not yet enough.

It's time for me to reserve a few more. So taking the last two C160s:
2137166671^19-1 (C168)
941623117^19-1 (C162)

And two larger ones:
(42467^41-1)/42466 (186 digits)
(32299^47-1)/32298 (208 digits)

Chris

(32299^47-1)/32298 didn't take long: [code]
********** Factor found in step 2: 467908890092950393150264099367583419
Found prime factor of 36 digits: 467908890092950393150264099367583419
Prime cofactor 5656524432655905841720089110429558281847908529067694445184472323016778628113357863508018683626345269950627609623337633134442863355839517172723912603546160186922395188283079 has 172 digits
[/code]
So reserving:
(32941^47-1)/32940

Chris

I will take the following for timing.
(37021^43-1)/37020 (192 digits)

Reserving:
(457204531267692121^13-1)/457204531267692120 (212 digits)

Chris

(457204531267692121^13-1)/457204531267692120 was factored by ECM, so reserving:
(33073^47-1)/33072 (208 digits)

Chris

(33073^47-1)/33072 was also factored by ECM: [code]
********** Factor found in step 2: 213085058008081642844199070767992452867051
Found prime factor of 42 digits: 213085058008081642844199070767992452867051
Prime cofactor 36918607731301054890976693104067607186107380200657743635425564999188167826818865364836102317161411436159965393934816169190617747688161721836568217142493988786723939293 has 167 digits
[/code]
So reserving:
(33091^47-1)/33090 (208 digits)

Chris