336 113 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
249272226806444785750676071	27	87.7	2019-03-22 22:16:03

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	462 / 640

Estimated T-Level: 28.6 ⓘ

TF below 2^90 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	2731	0
Verified (Factored)		Unknown	2731	0
Verified (Factored)		Guillermo Ballester Valor	41DFFB8315A12731	0
Verified (Factored)		Eivind Triel	41DFFB8315A12731	331319
Verified (Factored)	2002-01-15	Dennis Pope	41DFFB8315A12731	238101

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-03-22	ATH	B43A20EDF7C4D38D	1	229951	5	3
Verified	2019-03-23	kkmrkkblmbrbk	B43A20EDF7C4D38D	1	190124	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2021-06-10	George Woltman	NF-PP1	Start=2/7, B1=30000000, B2=3060000000
2019-03-23	kkmrkkblmbrbk	C-PRP	M336113/249272226806444785750676071 : B43A20EDF7C4D38D PRP: Verified PRP without proof (small exponent)
2019-03-22	ATH	C-PRP	M336113/249272226806444785750676071 : B43A20EDF7C4D38D PRP: Verified PRP without proof (small exponent)
2019-03-22	alex	F-ECM	Factor: 249272226806444785750676071 / (ECM curve 161, B1=250000, B2=25000000, Sigma=603008491150157)
2018-01-27	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-08-11	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2015-12-11	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-12-11	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-23	NR	NF	no factor from 2^61 to 2^62
2013-05-02	Sid & Andy	NF	no factor from 2^60 to 2^61
2012-02-04	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2011-08-09	Joss	NF-PM1	B1=1365806
2009-01-28	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-29	Sturle Sunde	NF	no factor from 2^58 to 2^59