long history
 

There are some exponents that have a lot of history. 864917 has 346 History lines. I understand 1277 at 439 and 1619 at 270. Others do not make as much sense to me. I think they may result from submission error loops in some cases. Other than stumbling upon them, is there a way to find these long history exponents? I would love to collapse some with a factor. What are your best examples?

Somewhere in the world, there may be an Uni or maybe a school district where a former sys admin (who may be long gone) impregnated the OS image disk with a copy of self-starting Prime95 complete with a worktodo with this exponent. Now every time they reimage the computer (or computer[B][I]s[/I][/B]... and even then, probably because the poor computers seem to run unexplicably slow!), the exponent is run all over again. (google "Brad Niesluchowski seti")

Just a wild theory.

[QUOTE=dbaugh;324323]There are some exponents that have a lot of history. 864917 has 346 History lines. I understand 1277 at 439 and 1619 at 270. Others do not make as much sense to me. I think they may result from submission error loops in some cases. Other than stumbling upon them, is there a way to find these long history exponents? I would love to collapse some with a factor. What are your best examples?[/QUOTE]

Well there's 1,000,003 that was LL'd many times before it was subsequently P-1's about 100 times.

I believe there was another just a little higher in the low 1M range that was LL's a hundred or more times.

[QUOTE=Batalov;324344]...

self-starting Prime95 complete with a worktodo with this exponent. Now every time they reimage the computer (or computer[B][I]s[/I][/B]... and even then, probably because the poor computers seem to run unexplicably slow!), the exponent is run all over again. (google "Brad Niesluchowski seti")

Just a wild theory.[/QUOTE]

Computer-[SIZE=2]Atelophobia?[/SIZE]

Doing a quick double-check on a low exponent, is a fast way to verify the setup is working. I have done it a couple of times when setting up new computers before letting them loose.

You may as well test a known prime.
It also tests the system, with the plus of making you feel an important person when the result pops out :wink:...