Mersenne number factored (disbelievers are biting elbows) - Page 54

tuckerkao · 2022-06-04, 03:47

Quote:

Originally Posted by GP2

M245107 is a probable semi-prime.

Factor found by Sid & Andy. Test by user SRJ2877.

Does the PRP-co-factor need to be run by other users as well or not to confirm? If yes, how long will it take? Is there perhaps an upper limit on the exponent size which the alternative program can reach up to?

Quote:

Originally Posted by paulunderwood

Congrats to Ryan for proving the cofactor of M78737 using FastECPP.

Not sure whether FastECPP runs like LL or not.

There were 2 users on M10443557

petrw1 · 2022-06-04, 05:00

Quote:

Originally Posted by GP2

M245107 is a probable semi-prime.

Factor found by Sid & Andy. Test by user SRJ2877.

OMG I'm almost famous ...

tuckerkao · 2022-06-04, 05:06

Quote:

Originally Posted by petrw1

OMG I'm almost famous ...

I thought you were Wayne. Is Sid & Andy or SRJ2877 your testing account or are they your followers?

Quote:

Originally Posted by axn

Congrats @petrw1. I believe this is the first "confirmed kill" for the "low" project

Does the project manager get the credit if 1 of the follower users made the discovery?

axn · 2022-06-04, 05:24

"Sid & Andy" is petrw1's GIMPS username

ixfd64 · 2022-06-04, 06:54

Quote:

Originally Posted by tuckerkao

Does the PRP-co-factor need to be run by other users as well or not to confirm? If yes, how long will it take? Is there perhaps an upper limit on the exponent size which the alternative program can reach up to?

Yes, but it is not necessary to re-run the whole test as we can also generate PRP proofs for cofactors. Verifying a proof is much faster.

mathwiz · 2022-06-04, 10:54

Quote:

Originally Posted by tuckerkao

Not sure whether FastECPP runs like LL or not.

I have no idea what you mean by "runs like". But... no.

FastECPP is a completely different algorithm and proof method. It can be distributed among many machines using MPI. The algorithm itself has nothing to do with LL testing.

GP2 · 2022-07-03, 19:04

M12,720,787 has been reported fully factored. The PRP test was done by user Funky Waddle.

This would be a new record, eclipsing M10,443,557 from July 2020.

masser · 2022-10-20, 02:22

Quote:

Originally Posted by GP2

M12,720,787 has been reported fully factored. The PRP test was done by user Funky Waddle.

This would be a new record, eclipsing M10,443,557 from July 2020.

This result doesn't appear to have been reported to http://www.primenumbers.net/prptop/prptop.php. Has anyone tried to submit this PRP?

paulunderwood · 2022-10-30, 13:05

Congrats to Serge for proving with CM (ECPP) the cofactor of M87691.

paulunderwood · 2022-11-25, 04:57

I have just made a submission to The Prime Pages and uploaded the certificate do factorDB for the M174533 cofactor.

paulunderwood · 2022-12-07, 20:47

Quote:

Originally Posted by paulunderwood

I have just made a submission to The Prime Pages and uploaded the certificate do factorDB for the M174533 cofactor.

The certificate has been verified by factorDB. Now https://www.mersenne.ca/prp.php needs to be updated.

2022-07-03, 19:04	#590
GP2 Sep 2003 3×863 Posts	M12,720,787 has been reported fully factored. The PRP test was done by user Funky Waddle. This would be a new record, eclipsing M10,443,557 from July 2020. Last fiddled with by GP2 on 2022-07-03 at 19:08

2022-11-25, 04:57	#593
paulunderwood Sep 2002 Database er0rr 5×29×31 Posts	I have just made a submission to The Prime Pages and uploaded the certificate do factorDB for the M174533 cofactor. Last fiddled with by paulunderwood on 2022-11-25 at 05:08

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