2 692 247 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
3563151551277546570967	22	71.6	2018-06-22 04:49:27

ECM

Digits	B1	Curves
25	50000	30 / 280

Estimated T-Level: 20.5 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Alan Vaughan	2F028245E60BFE82	0
Verified (Factored)	1999-04-23	C. Cooper / S. Boone	2F028245E60BFE82	750815

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-06-22	Anton Repko	0B40D2DD2F9EA74C	1	332463	5	3
Verified	2018-06-22	GunnarLu	0B40D2DD2F9EA74C	1	1127387	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2018-06-22	GunnarLu	C-PRP	M2692247/3563151551277546570967 : 0B40D2DD2F9EA74C PRP: Verified PRP without proof (not generated)
2018-06-22	Anton Repko	C-PRP	M2692247/3563151551277546570967 : 0B40D2DD2F9EA74C PRP: Verified PRP without proof (not generated)
2018-06-22	Chang Chia-Tche	F-ECM	Factor: 3563151551277546570967 / (ECM curve 3, B1=50000, B2=5000000)
2017-09-15	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-04-22	Joss	NF-PM1	B1=335000, B2=3350000, E=6
2016-12-20	Joss	NF-PM1	B1=201000
2016-07-14	Joss	NF-PM1	B1=167500, B2=4620000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-01-27	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-23	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-23	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-05-05	markr	NF	no factor from 2^61 to 2^62
2011-01-31	markr	NF-PM1	B1=105000, B2=2310000
2010-12-26	Joss	NF-PM1	B1=30000
2010-12-22	Joss	NF-PM1	B1=20000
2009-01-26	Sturle Sunde	NF	no factor from 2^60 to 2^61