5 075 251 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
10025326948289000609548950937	29	93.0	2017-07-10 10:44:03

ECM

Digits	B1	Curves
25	50000	6 / 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)	1998-12-13	Team love_fest	4D85227FA4A15C1E	0
Verified (Factored)	2000-04-12	Matthijs Wolters	4D85227FA4A15C1E	2888191

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	alpertron	02244E2CD0725376	1	0	1	3
Verified	2018-01-19	kkmrkkblmbrbk	02244E2CD0725376	1	780015	1	3

P-1 factors

Date	Factor	B1	B2
2017-07-10	10025326948289000609548950937	1500000	45000000

History

Date	User	Type	Result
2018-01-19	kkmrkkblmbrbk	C-PRP	M5075251/10025326948289000609548950937 : 02244E2CD0725376 PRP: Verified PRP without proof (not generated)
2017-09-28	alpertron	C-PRP	M5075251/10025326948289000609548950937 : 02244E2CD0725376 PRP: Verified PRP without proof (not generated)
2017-07-10	mikr	F-PM1	Factor: 10025326948289000609548950937 / (P-1, B1=1500000, B2=45000000, E=12)
2016-05-23	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^61
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-08-02	snme2pm1	NF	no factor from 2^65 to 2^66
2014-09-15	monst	NF	no factor from 2^64 to 2^65
2014-09-01	kracker	NF	no factor from 2^63 to 2^64
2009-08-15	USAFSS	NF-PM1	B1=60000, B2=1065000, E=6
2009-08-08	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2008-12-28	Sturle Sunde	NF	no factor from 2^61 to 2^62