[QUOTE=Andi47;253800]nice! :tu: How much ECM did the cofactor of this one have?

I'll take it for a few (or much, depending on how it develops) more steps, added a reservation over there in the main reservation thread.[/QUOTE]

Here's the ecm I ran:

c110: running 74 ecm curves at B1=11e3...
c110: running 214 ecm curves at B1=5e4...
c110: running 430 ecm curves at B1=25e4...
c110: running 904 ecm curves at B1=1e6...
c110: running 117 ecm curves at B1=3e6...

Good luck!

Done with 172340, reserving 174888.

Done with 174720, 174984 and 174888.

[QUOTE=unconnected;253895]Done with 172340, reserving 174888.[/QUOTE]

Hum. That's confusing. I wonder why 172340 was released? It was left at about 86-87 digits after dropping down from > 100 digits and never hitting 110 digits. :surprised:confused: I've now advanced it back to 89 digits and it is driverless. Therefore I will reserve 172340 to 110 digits for this effort.

Sorry, it was a typo, I mean 174720. 172340 now at index 1493, I'm still running it.

161064: i1786, size 128, [COLOR=Blue]2^2*3[/COLOR] gnfs-ready

172340 merges with 153322, actually lower value is 24416, but I can't found it in open-sequences list at [url]http://rieselprime.de/[/url], therefore it merges with an earlier one.

[QUOTE=unconnected;253976]172340 merges with 153322, actually lower value is 24416, but I can't found it in open-sequences list at [URL]http://rieselprime.de/[/URL], therefore it merges with an earlier one.[/QUOTE]

Nice! My merge finder says:

172340.2043 merges with 5208.6

159846: i857, size 125, [COLOR=Blue]2^2*3^2[/COLOR] gnfs-ready

Done with 163872, 116 Digits, 2^2*3^3*5*7^2
Done with 163890, 114 Digits, 2^2*3^2*5*7

Taking rest of <175k:
168372, 168378, 168720, 168840, 168960,
169056, 169080, 169980,
[COLOR=Red]172004[/COLOR] (already at 118 digits in DB), 172032, 172116, 172308, 172344, 172668, 172692, 172880,
[COLOR=Red]173988[/COLOR] (already at 111 digits in DB),
174360, 174690