11 986 417 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
1737325045447381257401	22	70.6	2016-02-13 19:37:29

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)	2001-06-09	Mark Caswell	7EDE98693D7E9513	11072846
Verified (Factored)	2004-06-21	Azzedine Elmghari	7EDE98693D7E9513	7280257

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-16	mrh	5EA86BAB92810D90	1	8393825	5	3

History

Date	User	Type	Result
2023-06-16	nordi	NF-PM1	B1=400000, B2=428459850
2021-12-16	DanB	CERT	PRP Certification Proof certified good
2021-12-16	mrh	C-PRP	M11986417/1737325045447381257401 : 5EA86BAB92810D90 PRP proof power = 8 PRP: Verified Proof certified good
2021-11-15	nordi	NF-PM1	B1=400000, B2=12000000
2021-11-13	nordi	NF-PM1	B1=400000
2016-02-13	basey	F-ECM	Factor: 1737325045447381257401 / (ECM curve 1, B1=50000, B2=5000000)
2015-10-20	Sid & Andy	NF-PM1	B1=130000, B2=2275000, E=6
2013-10-20	Nesowa	NF	no factor from 2^65 to 2^66
2013-09-28	lycorn	NF	no factor from 2^64 to 2^65