[quote=davieddy;201138]All exponents below 20M double checked:party:[/quote]

All exponents below 20M had a first-time test completed as of December 31, 2007. So it looks like there is almost exactly two years between completing first tests to X and then completing double-checks to X. That's not really that terrible, and probably a lot better than many would have suspected.

[QUOTE=davieddy;201138]All exponents below 20M double checked:party:[/QUOTE]

From my archives I can see it happened January 7th between 05:39 and 06:39 UTC/GMT (6:39-7:39am CET or 12:39-1:39am EST).

[quote=NBtarheel_33;197055]Countdown to proving M(20996011) is the 40th Mersenne Prime: 100 as of 0538 GMT on 2009-11-26. It took 50 days to clear 100 exponents, or 1.5 times as long as it took to go from 300->200. Looks definitely like exponential decay on the rate of completion, and I would say that we'll be lucky to see this last 100 cleared by April 1, 2010.[/quote]

Countdown to proving M(20996011) is the 40th Mersenne Prime: 50

74 days for 50 exponents.

[quote=ckdo;204880]Countdown to proving M(20996011) is the 40th Mersenne Prime: 50

74 days for 50 exponents.[/quote]
This actually was reached yesterday.
5 more "half lives" makes it another year before the proof
is completed :-(

Nobody mention it yet, but last week (I think) all exponents below 28M have been checked. :w00t:
Only 3 remaining before 30M milestone :smile:

[QUOTE=davieddy;204882]This actually was reached yesterday.
5 more "half lives" makes it another year before the proof
is completed :-([/QUOTE]

The process seems to have sped up... there are now just 43 remaining.

[quote=Primeinator;205955]The process seems to have sped up... there are now just 43 remaining.[/quote]
Still are.
Guess it's taking a breather after that burst of activity.

New milestone for the GIMPS leading edge
 

I saw where PrimeNet was handing out regular LL assignments over 50 million yesterday afternoon. I got assigned an exponent right below 50 million, but others were getting them as high as 50.02 million. :smile::showoff:

I think the P4 single-core system that got the just-below-50M assignment returned an estimated completion of about 70 days or so. IIRC, exponents in this range require the 3072K FFT.

[quote=NBtarheel_33;206371]I saw where PrimeNet was handing out regular LL assignments over 50 million yesterday afternoon. I got assigned an exponent right below 50 million, but others were getting them as high as 50.02 million. :smile::showoff:[/quote]My P-1 assignments are all in the mid-51 millions, which fits.

[quote]IIRC, exponents in this range require the 3072K FFT.[/quote]Yes.

TF assignments are getting bigger too
 

TF assignments have crossed the 70 million threshold. I got a TF assignment right around 70.5M this evening.

It's not going to be long before we're out of the "classical" GIMPS 79.3M assignment space.

Our only problem is if people start to lose patience with the assignments as they take longer and longer. For most seasoned GIMPSters, this won't be a problem, but it might be for the newer folks. At some point it probably becomes worthwhile to store intermediate save files on the server, and allow folks to complete (and receive credit for) *portions* of an LL test.

41 more to go. This prime carries a special significance for me; I joined GIMPS during its verification.