2 432 737 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
395562900827214357612719	24	78.4	2020-05-15 06:46:30

ECM

Digits	B1	Curves
25	50000	43 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ignacio Santos	7B1FF1944205A66F	0
Verified (Factored)	1999-04-23	MFS Software	7B1FF1944205A66F	1210949
Verified (Factored)	2018-05-22	kkmrkkblmbrbk	7B1FF1944205A66F	59694

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-05-15	M Miller	92E05B555A8D9529	1	507866	5	3
Verified	2020-05-15	mnd9	92E05B555A8D9529	1	1457639	5	3
Verified	2020-05-16	marssystems	92E05B555A8D9529	1	1461075	5	3

History

Date	User	Type	Result
2020-05-16	marssystems	C-PRP	M2432737/395562900827214357612719 : 92E05B555A8D9529 PRP: Verified PRP without proof (not generated)
2020-05-15	mnd9	C-PRP	M2432737/395562900827214357612719 : 92E05B555A8D9529 PRP: Verified PRP without proof (not generated)
2020-05-15	M Miller	C-PRP	M2432737/395562900827214357612719 : 92E05B555A8D9529 PRP: Verified PRP without proof (not generated)
2020-05-15	mnd9	F-ECM	Factor: 395562900827214357612719 / (ECM curve 1, B1=50000, B2=5000000, Sigma=325862208203958)
2019-07-01	TJAOI	NF	no factor from 2^67 to 2^68
2018-05-22	kkmrkkblmbrbk	C-LL	7B1FF1944205A66F
2017-07-08	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
2015-10-25	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-27	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-27	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-04-28	mikr	NF-PM1	B1=1986400, B2=69524000, E=12
2013-12-04	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-06-05	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-01-24	Oscar Östlin	NF-PM1	B1=95000, B2=1923750, E=6
2011-01-09	Oscar Östlin	NF-PM1	B1=75011
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-16	Sturle Sunde	NF	no factor from 2^60 to 2^61