2 436 953 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
5755716053086937828008343	25	82.3	2021-03-19 19:18:48

ECM

Digits	B1	Curves
25	50000	117 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		St. Patrick's College (John Cosgrave & Mark Daly & Olivia Bree et. al.)	71251F509D26B314	0
Verified (Factored)	1999-03-15	Ethan O'Connor	71251F509D26B314	959825
Verified (Factored)	2018-05-23	kkmrkkblmbrbk	71251F509D26B314	391736

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-03-21	rbanov	EF4B3D4FA34DFCE3	1	2170257	5	3

History

Date	User	Type	Result
2021-03-21	curtisc	CERT	PRP Certification Proof certified good
2021-03-21	rbanov	C-PRP	M2436953/5755716053086937828008343 : EF4B3D4FA34DFCE3 PRP proof power = 7 PRP: Verified Proof certified good
2021-03-19	Zenzoma	F-ECM	Factor: 5755716053086937828008343 / (ECM curve 7, B1=50000, B2=5000000, Sigma=6520241761293787)
2019-06-03	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-23	kkmrkkblmbrbk	C-LL	71251F509D26B314
2017-07-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-05-11	mikr	NF-PM1	B1=1988120, B2=69584180, E=12
2013-12-04	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-06-05	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-10	Oscar Östlin	NF-PM1	B1=95000, B2=1923750, E=6
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-15	Sturle Sunde	NF	no factor from 2^60 to 2^61