7 943 059 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
271686147462840271969	21	67.9	2018-07-24 09:48:47

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1999-10-15	Ricardo Iskra	7B29DE5EF145B2BD	1462587
Bad	2002-08-24	Team_MACY	3DE770AF81AFBD64	5189516
Verified (Factored)	2002-09-29	Ars Technica Team Prime Rib	7B29DE5EF145B2BD	2045750

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-07-25	_p95holder_	45BCE88D93FDEDC2	1	448227	5	3
Verified	2019-11-29	ATH	45BCE88D93FDEDC2	1	825842	5	3

History

Date	User	Type	Result
2019-11-29	ATH	C-PRP	M7943059/271686147462840271969 : 45BCE88D93FDEDC2 PRP: Verified PRP without proof (not generated)
2018-07-25	_p95holder_	C-PRP	M7943059/271686147462840271969 : 45BCE88D93FDEDC2 PRP: Verified PRP without proof (not generated)
2018-07-24	ramgeis	F	Factor: 271686147462840271969 / TF: 67-68*
2016-08-17	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-03	VictordeHollander	NF	no factor from 2^65 to 2^66
2013-12-21	David Campeau	NF	no factor from 2^64 to 2^65
2013-10-02	Nesowa	NF	no factor from 2^63 to 2^64
2012-06-25	firejuggler	NF-PM1	B1=100000, B2=1950000, E=6