Here's another one from the "shortest sequences" posting shown in my last status. I've extended 171240 a little bit and am done with it. Status:

171240; i=303; sz 108; C105; +10; 2^3*3*5^2

I'm trying to get all of those to i>300.

Another from the "shortest sequences" list. I've extended 199560 a little and am done with it. Status:

199560; i=308; sz 109; C101; +19; 2^3*3*5

Yet another from the "shortest sequences" list. I've extended 147978 a little and am done with it. Status:

147978; i=316; sz 109; C105; +28; 2^3*3*5

I am now done with 121338. Status:

121338; i=1107; sz 108; C107; +89; 2*3

More from the "shortest sequences" list. I've extended 117432 a little and am done with it. Status:

117432; i=331; sz 117; C106; +46; 2^3*3*5^2


There are two more that I will be working on from that list that are still at i<300. Then it will be on to my recent "long sequence" reservations.

I am now done with 646296. Status:

646296; i=3594; sz 112; C104; +199; 2^2*3*7

[code]10/28/09
Seq Index Size Co-factor Driver/Guide
29772 1032 131 122 2 <--nfs in progress for the c122 :cry:
88662 2183 124 117 2^5
123960 1795 109 99 2^2
170196 1721 135 126 2^3
171018 1825 115 113 2^4 * 3
363270 1620 134 112 2^8 * 3
479632 1314 125 114 2^3 * 5 * 7
604560 2462 129 122 2^6[/code]

More from the "shortest sequences" list. I've extended 111624 a little and am done with it. Status:

111624; i=321; sz 114; C108; +43; 2*3


With this advance, I was able to get rid of the nasty 2^5*3*7 driver in favor of the 2*3 driver. It's the first one from that list that I was finally able to get rid of the main driver. Although 2*3 doesn't help things much, at least it doesn't increase it's size so drastically every index.

Syd's 162126 has advanced to 171 digits after a c157 split as p64 * p93. It now has a c165. I imagine that Syd could do a c180 if he wanted to, so having already become the first sequence to reach 170 digits, will it get to 180, 190 or even 200?

Here is the last one from the "shortest sequences" list. I've extended 102360 quite a bit more than the others and am done with it. Status:

102360; i=365; sz 119; C105; +83; 2^6


Everyone pay attention now. :smile: This sequence NO LONGER HAS A DRIVER! This is the first and only one from that list that I was able to drop the very tenacious driver that each of those sequences had. It is currently guided by 2^6. So if you have some decent resources and can carry on from 119 digits, you could find a very high down-driver!

Now...back to my "real" reservations. :smile:

(caps for emphasis, not yelling)


Gary

c113 from 842592:6669 was cracked by ECM as p56*p57
[quote]Factor=39659056817298977052313431042539933940395678655080862877 Method=ECM B1=11000000 Sigma=4281364321[/quote]

Now it is the 5th longest sequence and there is no driver - size 124, 2^2 guide.