2 466 481 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
378025080466221746685553	24	78.3	2020-08-26 03:54:14

ECM

Digits	B1	Curves
25	50000	74 / 280

Estimated T-Level: 21.3 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	3786FA37524101F6	0
Verified (Factored)	1999-05-23	Kent Lee	3786FA37524101F6	477866
Verified (Factored)	2018-05-28	kkmrkkblmbrbk	3786FA37524101F6	1588336

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-26	jvang	2D38A6AFF3CDDDEE	1	1002412	5	3

History

Date	User	Type	Result
2020-08-26	Ben Delo	CERT	PRP Certification Proof certified good
2020-08-26	jvang	C-PRP	M2466481/378025080466221746685553 : 2D38A6AFF3CDDDEE PRP proof power = 7 PRP: Verified Proof certified good
2020-08-26	daveward2005	F-ECM	Factor: 378025080466221746685553 / (ECM curve 5, B1=50000, B2=5000000)
2019-06-17	TJAOI	NF	no factor from 2^67 to 2^68
2019-04-19	Sid & Andy	NF-PM1	B1=6000000, B2=180000000, E=12
2018-05-28	kkmrkkblmbrbk	C-LL	3786FA37524101F6
2017-07-16	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
2015-10-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-10-22	David Campeau	NF-PM1	B1=590000, B2=15930000, E=12
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-08	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-11-25	Joss	NF-PM1	B1=246648
2010-11-19	Joss	NF-PM1	B1=20000
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61