2 049 127 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
2775895468088496667577351	25	81.2	2018-09-27 16:14:56

ECM

Digits	B1	Curves
25	50000	109 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Steve Costaras	94C1BE5D3CB55581	0
Verified (Factored)		Eric Praetzel	94C1BE5D3CB55581	0
Verified (Factored)	1999-01-29	Aaron B	94C1BE5D3CB55581	1568761

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-09-27	storm5510	A527F9491455790E	1	1351871	5	3
Verified	2018-09-27	rucio	A527F9491455790E	1	1236225	5	3

History

Date	User	Type	Result
2018-09-27	rucio	C-PRP	M2049127/2775895468088496667577351 : A527F9491455790E PRP: Verified PRP without proof (not generated)
2018-09-27	storm5510	C-PRP	M2049127/2775895468088496667577351 : A527F9491455790E PRP: Verified PRP without proof (not generated)
2018-09-27	bam	F-ECM	Factor: 2775895468088496667577351 / (ECM curve 1, B1=50000, B2=5000000)
2016-08-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-03	ramgeis	NF	no factor from 2^65 to 2^66
2015-10-06	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-04-13	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-13	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-22	Joss	NF-PM1	B1=166323
2013-08-30	ramgeis	NF	no factor from 2^62 to 2^63
2012-02-29	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2012-01-06	Squeeky_Squirrel	NF-PM1	B1=135000, B2=2868750, E=6
2011-01-04	Joss	NF-PM1	B1=50000
2010-12-28	Joss	NF-PM1	B1=30000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61