3 093 973 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
1431648660384897596423	22	70.3	2020-10-23 06:47:29

ECM

Digits	B1	Curves
25	50000	20 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Dax Prather	44573FA793628FA9	0
Verified (Factored)	1998-08-24	Terry S. Arnold	44573FA793628FA9	0
Verified (Factored)	1999-10-29	l simon	44573FA793628FA9	719439

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-10-23	mrh	97ABECB584224D91	1	2370491	5	3

History

Date	User	Type	Result
2022-02-20	Joss	NF-PM1	B1=1000000, B2=128282700
2020-10-23	Ben Delo	CERT	PRP Certification Proof certified good
2020-10-23	mrh	C-PRP	M3093973/1431648660384897596423 : 97ABECB584224D91 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-23	lycorn	F-ECM	Factor: 1431648660384897596423 / (ECM curve 5, B1=50000, B2=5000000, Sigma=134914538166004)
2018-08-19	ramgeis	NF	no factor from 2^67 to 2^68
2018-05-12	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-05-18	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-17	Joss	NF-PM1	B1=200000, B2=6170427, E=6
2015-06-11	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-03	Sid & Andy	NF	no factor from 2^61 to 2^62
2011-08-16	USAFSS	NF-PM1	B1=100000, B2=2125000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61