11 943 493 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
968687084202437414274168151	27	89.6	2017-09-25 16:31:18

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	2001-05-20	EDNY	A605316A27AF16F0	5714833
Verified (Factored)	2004-05-11	Ars Technica Team Prime Rib	A605316A27AF16F0	4434244

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-07	Joe S.	B9E47F21BA74F964	1	4544297	5	3

History

Date	User	Type	Result
2023-05-19	nordi	NF-PM1	B1=400000, B2=428459850
2021-12-07	curtisc	CERT	PRP Certification Proof certified good
2021-12-07	Joe S.	C-PRP	M11943493/968687084202437414274168151 : B9E47F21BA74F964 PRP proof power = 8 PRP: Verified Proof certified good
2021-11-21	nordi	NF-PM1	B1=400000, B2=12000000
2021-11-20	nordi	NF-PM1	B1=400000
2017-09-25	ATH	F-ECM	Factor: 968687084202437414274168151 / (ECM curve 1, B1=50000, B2=5000000)
2016-04-25	Tha	NF-PM1	B1=300000, B2=6000000, E=6
2016-03-03	Yxinity	NF	no factor from 2^66 to 2^67
2013-10-20	Nesowa	NF	no factor from 2^65 to 2^66
2013-10-07	lycorn	NF	no factor from 2^64 to 2^65