2 926 003 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
328592703620534038290887	24	78.1	2023-05-16 10:52:28

ECM

Digits	B1	Curves
25	50000	141 / 280

Estimated T-Level: 22.5 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		INTERSHOP Communications	907F9B43CD77138F	0
Verified (Factored)	1999-11-17	Michelle Jarrett	907F9B43CD77138F	2484731
Verified (Factored)	2018-10-06	kkmrkkblmbrbk	907F9B43CD77138F	2797457

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-05-22	Perig	E27AA82D052D2EC3	1	1534973	5	3

History

Date	User	Type	Result
2023-05-22	Haruka	CERT	PRP Certification Proof certified good
2023-05-22	Perig	C-PRP	M2926003/328592703620534038290887 : E27AA82D052D2EC3 PRP proof power = 7 PRP: Verified Proof certified good
2023-05-16	Sergey Nosov	F-ECM	Factor: 328592703620534038290887 / (ECM curve 17, B1=50000, B2=5000000)
2023-05-05	TJAOI	NF	no factor from 2^69 to 2^70
2022-09-04	Wentao Huang	NF-PM1	B1=1200000, B2=3268104840
2022-09-04	mikr	NF-PM1	B1=10000000, B2=19223759100
2021-05-31	TJAOI	NF	no factor from 2^68 to 2^69
2018-12-20	chuenkit	NF	no factor from 2^67 to 2^68
2018-10-06	kkmrkkblmbrbk	C-LL	907F9B43CD77138F
2017-11-22	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-23	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-25	VictordeHollander	NF-PM1	B1=1000000, B2=20000000, E=12
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-01-08	markr	NF	no factor from 2^61 to 2^62
2010-11-12	markr	NF-PM1	B1=105000, B2=2283750, E=6
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61