3 616 661 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁰

TF target 2⁶⁴

P-1

B1 =	2380546
B2 =	4778283510

ECM

Digits	B1	Curves
25	50000	93 / 280

Estimated T-Level: 21.7 ⓘ

Status	Date	User	Residue	Shift
Verified		Roger Burton-West	9C2253FC1F9BAC8F	0
Verified	1999-12-01	Floris Looyesteyn	9C2253FC1F9BAC8F	1474187

History

Date	User	Type	Result
2024-01-17	Joss	NF-PM1	B1=2380546, B2=4778283510
2022-01-27	Gordon Spence	NF	no factor from 2^69 to 2^70
2020-10-20	axn	NF	no factor from 2^68 to 2^69
2020-08-06	axn	NF-PM1	B1=30000000, B2=1000000000, E=12
2020-06-11	axn	NF-PM1	B1=30000000, B2=600000000, E=12
2018-11-26	TJAOI	NF	no factor from 2^67 to 2^68
2016-12-23	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-10-18	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-20	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-20	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-06-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-12-16	markr	NF-PM1	B1=240000, B2=6180000, E=12
2011-05-29	markr	NF	no factor from 2^61 to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-12	S485122	NF	no factor from 2^60 to 2^61