5 911 127 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
11979604775939685383167231	26	83.3	2014-11-02 23:04:40

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-04	Justin Wingo	16B5A5A0BDD10AA1	0
Bad	2000-11-25	Scott D. Bardwick	C97A12ADD6778CD7	1509264
Verified (Factored)	2001-11-10	Håkan Bendtz	16B5A5A0BDD10AA1	2978092

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	A7CCDA9074B791F4	1	0	1	3
Verified	2018-09-11	rucio	A7CCDA9074B791F4	1	1353886	1	3

P-1 factors

Date	Factor	B1	B2
2014-11-02	11979604775939685383167231	360000	8820000

History

Date	User	Type	Result
2022-06-22	LordJulius	NF	no factor from 2^62 to 2^63
2018-09-11	rucio	C-PRP	M5911127/11979604775939685383167231 : A7CCDA9074B791F4 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M5911127/11979604775939685383167231 : A7CCDA9074B791F4 PRP: Verified PRP without proof (not generated)
2014-11-02	Nesowa	F-PM1	Factor: 11979604775939685383167231 / (P-1, B1=360000, B2=8820000, E=12)
2014-09-30	monst	NF	no factor from 2^64 to 2^65
2014-09-29	Nesowa	NF	no factor from 2^63 to 2^64
2011-05-02	USAFSS	NF-PM1	B1=70000, B2=1120000, E=6