2 035 093 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
41099992296433922620871	23	75.1	2021-06-19 14:10:45

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	109 / 640

Estimated T-Level: 25.9 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		phil kenny	0988FEBBCD143199	0
Verified (Factored)	1999-01-10	Lawrence Ng	0988FEBBCD143199	630810
Verified (Factored)	2016-07-15	Mark Rose	0988FEBBCD143199	1304577

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-19	SRJ2877	067A33A77BF96CFC	1	1764788	5	3

History

Date	User	Type	Result
2021-06-19	Linean	CERT	PRP Certification Proof certified good
2021-06-19	SRJ2877	C-PRP	M2035093/41099992296433922620871 : 067A33A77BF96CFC PRP proof power = 7 PRP: Verified Proof certified good
2021-06-19	kutens	F-ECM	Factor: 41099992296433922620871 / (ECM curve 6, B1=50000, B2=6750000, Sigma=5693297910992226)
2019-05-21	mikr	NF-PM1	B1=4000000, B2=200000000, E=12
2019-03-20	chuenkit	NF	no factor from 2^67 to 2^68
2016-07-29	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-07-15	Mark Rose	C-LL	0988FEBBCD143199
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-01	ramgeis	NF	no factor from 2^65 to 2^66
2015-10-05	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-17	Joss	NF-PM1	B1=163078
2014-07-04	Joss	NF-PM1	B1=131539
2013-08-29	ramgeis	NF	no factor from 2^62 to 2^63
2012-02-10	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2009-01-30	markr	NF-PM1	B1=100000, B2=3000000, E=6
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61