1 539 983 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
795402370171323214202054297	27	89.4	2015-12-11 16:23:15

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Lee Middle School	515D0BE098244819	0
Verified (Factored)	1998-11-14	Paul Victor Novarese	515D0BE098244819	1211665
Verified (Factored)	2015-07-21	MadPoo	515D0BE098244819	1362272

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	alpertron	237E504FBF17949A	1	0	1	3
Verified	2017-10-18	Oliver Kruse	237E504FBF17949A	1	1126004	1	3

History

Date	User	Type	Result
2017-10-18	Oliver Kruse	C-PRP	M1539983/795402370171323214202054297 : 237E504FBF17949A PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1539983/795402370171323214202054297 : 237E504FBF17949A PRP: Verified PRP without proof (not generated)
2015-12-11	bam	F-ECM	Factor: 795402370171323214202054297 / (ECM curve 3, B1=50000, B2=5000000)
2015-10-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-21	MadPoo	C-LL	515D0BE098244819
2015-03-20	VictordeHollander	NF-PM1	B1=10000000, B2=200000000, E=12
2015-02-10	snme2pm1	NF	no factor from 2^64 to 2^65
2015-02-10	snme2pm1	NF	no factor from 2^63 to 2^64
2013-11-22	David Campeau	NF-PM1	B1=945000, B2=27405000, E=12
2011-02-02	James Heinrich	NF-PM1	B1=80000, B2=1340000, E=6
2010-05-12	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-28	Architects Cubed	NF	no factor from 2^60 to 2^61