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2021-05-08, 22:54
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#34 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
22·23·103 Posts |
... and.....................
Ryan keeps suspense, but now there is one more.
(apparently 5.7 million digits was not enough) and pssst, ...it has several 7s again in the exponent :-) Updated plot for Prof.Caldwell is attached: |
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2021-05-09, 02:26
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#35 |
Sep 2002
Database er0rr
3,739 Posts |
But, Serge, you have not told what it is! Why the suspense?
OMG, over 8 million digits! Bigger than M42, and if it was proven 11th largest prime. Last fiddled with by paulunderwood on 2021-05-09 at 02:41 |
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2021-05-09, 04:52
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#36 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
22·23·103 Posts |
We have the same scrutiny as GIMPS has. Especially given its size...
We are checking SPRP in 3-4 bases first (the best we can do for this PRP.) (b | N) = -1 for b = {7, 11, 23, 41, ...}. |
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2021-05-09, 06:32
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#37 | |
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Mar 2019
101100102 Posts |
Quote:
Last fiddled with by mathwiz on 2021-05-09 at 06:59 |
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2021-05-09, 06:59
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#38 |
Jun 2003
5,051 Posts |
Based on the clues, I have narrowed it down to:
8172707 8177207 8267747 8272787 8367707 8373377 8373767 8549777 8674727 8709377 8771207 8772347 8774897 8775947 8779217 8779937 |
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2021-05-09, 14:55
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#39 |
"Serge"
Mar 2008
Phi(4,2^7658614+1)/2
250416 Posts |
It is R8177207
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2021-05-09, 15:30
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#40 | |
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Sep 2002
Database er0rr
E9B16 Posts |
Quote:
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2021-05-09, 16:07
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#41 | |
Feb 2017
Nowhere
4,643 Posts |
Quote:
Congratulations on a new record PRP!  
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2021-05-09, 16:31
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#42 |
Jan 2007
Germany
23×41 Posts |
I'm speechless !
 Curios, the previous exponent have also a lot of 7s ! |
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2021-05-09, 17:26
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#43 | |
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Einyen
Dec 2003
Denmark
35·13 Posts |
Quote:
cllr64.exe -d -oLucasPRPtest=1 input.txt input.txt: ABC(10^$a-1)/9 8177207 or the BPSW version of Lucas test if you use LLR 3.8.24: cllr.exe -d -oLucasPRPtest=1 -oBPSW=1 -q"(10^8177207-1)/9" Last fiddled with by ATH on 2021-05-09 at 17:38 |
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2021-05-09, 17:48
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#44 | |
Dec 2008
you know...around...
3·13·17 Posts |
Quote:
 That's amazing, truly amazing!!(Would like to insert a picture of an anime character by the name of Enzo Garcia here, but I doubt anybody here knows him and shares my specific amazement : ) ... and even more so the fact that we'll hopefully soon know if R49081 really is a prime! Been waiting for this for almost two decades now. |
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