6 115 069 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
4880676953819303591752097	25	82.0	2016-05-13 05:27:12

ECM

Digits	B1	Curves
25	50000	5 / 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	Jean-Christophe BAILLIE	61529704C70F65AC	4808565
Verified (Factored)	2001-01-28	Marc Getty / Phil Fizur	61529704C70F65AC	4146543

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-20	kkmrkkblmbrbk	73A44104715A91C4	1	0	1	3
Verified	2018-09-17	rucio	73A44104715A91C4	1	118259	1	3

History

Date	User	Type	Result
2018-09-17	rucio	C-PRP	M6115069/4880676953819303591752097 : 73A44104715A91C4 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M6115069/4880676953819303591752097 : 73A44104715A91C4 PRP: Verified PRP without proof (not generated)
2016-05-13	bam	F-ECM	Factor: 4880676953819303591752097 / (ECM curve 2, B1=50000, B2=5000000)
2016-03-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-10-06	Bruno Victal	NF	no factor from 2^65 to 2^66
2014-09-18	monst	NF	no factor from 2^64 to 2^65
2014-09-10	Nesowa	NF	no factor from 2^63 to 2^64
2011-04-14	markr	NF-PM1	B1=115000, B2=2242500, E=6