15 754 807 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2732181396179281318734961	25	81.2	2016-12-31 13:46:55

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2002-11-02	Rick Cummings	21BD52E4123CBAAE	15326800
Verified (Factored)	2006-05-12	Gord Palameta	21BD52E4123CBAAE	4496925

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-10-03	Oliver Kruse	1D71A4FE8F2FF1A2	1	11370832	5	3

History

Date	User	Type	Result
2023-10-07	testwobrr08	CERT	PRP Certification Proof certified good
2023-10-03	Oliver Kruse	C-PRP	M15754807/2732181396179281318734961 : 1D71A4FE8F2FF1A2 PRP proof power = 8 PRP: Verified Proof certified good
2023-08-25	nordi	NF-PM1	B1=480000, B2=264402600
2023-07-29	nordi	NF-PM1	B1=480000
2016-12-31	ATH	F-ECM	Factor: 2732181396179281318734961 / (ECM curve 1, B1=50000, B2=5000000)
2016-03-16	Mark Rose	NF	no factor from 2^65 to 2^66
2014-07-10	Nesowa	NF	no factor from 2^66 to 2^67