1 911 289 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
1148438936148444041	19	60.0	old
205295949569977052393	21	67.5	2020-11-30 12:34:53
24789757075474728332231791	26	84.4	2015-09-24 16:54:59

ECM

Digits	B1	Curves
25	50000	275 / 280

Estimated T-Level: 24.9 ⓘ

TF below 2^78 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-19	Wayne Yeung	D6C9BC7430F1B33D	0
Verified (Factored)	1998-12-21	Smegheads	D6C9BC7430F1B33D	1278789

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-05	Oliver Kruse	AFBAED084E117849	2	0	1	3
Verified (Factored)	2017-11-15	kkmrkkblmbrbk	AFBAED084E117849	2	875140	1	3
Verified	2020-12-01	Poao	002808CAE61FAB9C	3	1830344	5	3

P-1 factors

Date	Factor	B1	B2
2015-09-24	24789757075474728332231791	500000	15000000

History

Date	User	Type	Result
2021-07-03	Dylan Delgado	NF-PM1	B1=2000000, B2=262000000
2021-04-07	Dylan Delgado	NF-PM1	B1=1000000, B2=71000000
2020-12-01	curtisc	CERT	PRP Certification Proof certified good
2020-12-01	Poao	C-PRP	M1911289/1148438936148444041/24789757075474728332231791/205295949569977052393 : 002808CAE61FAB9C PRP proof power = 7 PRP: Verified Proof certified good
2020-11-30	nordi	F-ECM	Factor: 205295949569977052393 / (ECM curve 3, B1=50000, B2=5000000, Sigma=5088164353487427)
2017-11-15	kkmrkkblmbrbk	C-PRP	M1911289/1148438936148444041/24789757075474728332231791 : AFBAED084E117849 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1911289/1148438936148444041/24789757075474728332231791 : AFBAED084E117849 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1911289/1148438936148444041/24789757075474728332231791 : AFBAED084E117849 PRP without proof (not generated)
2015-09-24	alpertron	F-PM1	Factor: 24789757075474728332231791 / (P-1, B1=500000, B2=15000000, E=12)