Hm... then we should be checking for numbers ending in 400...007. :grin:

[QUOTE=asdf]Hm... then we should be checking for numbers ending in 400...007. :grin:[/QUOTE]

There is only one known Mersenne prime beginning in 4 and ending in 7: M(1257787).

M(1257787) = 41224577362142867472532321846697896005278718565465946938
041320489580405544505611403131915527921059790566936327768315835989218762...850069878600726444210099524333695463164105135855267131257188976089366527

(It seems to be SUCH a small number. I'm used to waiting for at least half a minute when I try to look at the "largest known prime".)

The clue I was thinking about giving two days ago was that since this prime came so close after the last one, the algorithm producing the fake residue was never changed. It was published here after last Mersenne prime was found: [url]http://www.mersenneforum.org/showpost.php?p=15270&postcount=30[/url]
That reproduces the exact fake residue from the number. But seeing the string "C80125" in both the last fake residue and in one of the candidate numbers was almost as good.

Would jfindley like to join this thread?

I'm 86% finished my verification and expect to finish within about 24 hours from now.

Hello,

I left my turlle-verification at 25,46% :redface: . But I couldn't resist to run latest 36581 iterations on my Athlon from the Tony Reix last save file :innocent:, and see NEW MERSENNE PRIME DISCOVERED !!!! in my monitor. See the latest output (partialy obfusqued):

[QUOTE][May 26 22:21:49] M24036583. Saved file at iteration 24035000. Res64: 305B41542A062___.
[Wed May 26 22:25:54 2004]
UID: /1593476386, M24036583 is prime! G29: 00000000,0
NEW MERSENNE PRIME DISCOVERED !!!![/QUOTE]
:banana:

Guillermo

[QUOTE=gbvalor]Hello,

I left my turlle-verification at 25,46% :redface:Guillermo[/QUOTE]

You mean you've stopped the verification?

[QUOTE]You mean you've stopped the verification?[/QUOTE]

Yes, at the rate it was (0.156 sec/iter) I would need 45 days. It's too much. I never intended to perform an Official verification with my machine. Now I'm again with my asigned GIMPS exponent (a likely non-prime Mersenne Number) :smile:

Guillermo

Mea Culpa
 

Yes, I guess I should have edited the % complete out and there would have been a veneer of ambiguity still remaining. Unfortunately, I am still having trouble reconciling to the fact that I am a high and mighty moderator. So when I first saw the post, it didn't even register that I could delete it. :redface:
Sorry all!

[pre][May 27 15:25] Iteration: 22770000 / 24036583 [94.73%]. Per iteration time: 0.044 sec.
[/pre]

So there should be two verifications finished tomorrow.