Reserving 550T-555T.

For benchmark purposes, I've completed 5999T-6000T.

171 factors were found. The file is quite small, so I've attached it to this post instead of uploading it to sendspace.

edit: After finishing this range, I've found that 6P is the optimal sieve depth. See the "Two Sieving Questions" thread for more details.

510T-515T complete.

[url]http://www.sendspace.com/file/1lhgv4[/url]

Taking 555T-565T.

550T-555T finished, 10220 factors found:

[URL]http://www.sendspace.com/file/1amwm1[/URL]

Reserving 565T-570T.

525T-550T complete, about 51700 factors found:

[URL]http://www.sendspace.com/file/ra2laz[/URL]

Reserving 570T-585T.

Reserving 585T-590T.

I'm done with 565T-570T. 9904 factors were found:

[URL]http://www.sendspace.com/file/kd4zcg[/URL]

570T-585T complete, about 28900 factors found:

[URL]http://www.sendspace.com/file/b1wiqc[/URL]

Reserving 590T-600T. There's yet another heat wave rolling through my area, so I'm reserving a smaller range this time.

555T-565T complete, about 19800 factors.

[url]http://www.sendspace.com/file/c6198j[/url]

585T-590T done, 9481 factors: [URL]http://www.sendspace.com/file/dn6ygd[/URL]

Reserving 600T-605T.