1 681 349 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
135216308559608507503639	24	76.8	2008-06-11 09:40:13
35302127327415398913256583	26	84.9	2020-01-27 11:05:52

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		phil kenny	E96FD26F78AF5F92	0
Verified (Factored)	1999-01-02	Nathan Stohs	E96FD26F78AF5F92	1183900

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	42F804FAC97272EF	1	0	1	3
Verified (Factored)	2017-11-10	kkmrkkblmbrbk	42F804FAC97272EF	1	613327	1	3
Verified	2020-01-28	Chang Chia-Tche	0A5BF3794505A1CB	2	167273	5	3
Verified	2020-01-29	Steve Potocny	0A5BF3794505A1CB	2	1387101	5	3

History

Date	User	Type	Result
2020-01-29	Steve Potocny	C-PRP	M1681349/135216308559608507503639/35302127327415398913256583 : 0A5BF3794505A1CB PRP: Verified PRP without proof (not generated)
2020-01-28	Chang Chia-Tche	C-PRP	M1681349/135216308559608507503639/35302127327415398913256583 : 0A5BF3794505A1CB PRP: Verified PRP without proof (not generated)
2020-01-27	Niels_Mache_Nextcloud	F-ECM	Factor: 35302127327415398913256583 / (ECM curve 3, B1=50000, B2=5000000, Sigma=50600600959341)
2017-11-10	kkmrkkblmbrbk	C-PRP	M1681349/135216308559608507503639 : 42F804FAC97272EF PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1681349/135216308559608507503639 : 42F804FAC97272EF PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-06-11	James Heinrich	F-ECM	Factor: 135216308559608507503639