1 521 913 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
5059439112169224613001	22	72.1	2009-04-12 11:48:17

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)		Marc-Etienne Vargenau	5BD4AC9917E7757B	0
Verified (Factored)	1997-11-12	Herb Savage	5BD4AC9917E7757B	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	046AAAF7C6E5B38A	1	0	1	3
Verified	2017-10-29	kkmrkkblmbrbk	046AAAF7C6E5B38A	1	676669	1	3

History

Date	User	Type	Result
2022-03-08	LordJulius	NF	no factor from 2^56 to 2^57
2017-10-29	kkmrkkblmbrbk	C-PRP	M1521913/5059439112169224613001 : 046AAAF7C6E5B38A PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1521913/5059439112169224613001 : 046AAAF7C6E5B38A PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-04-12	Anu Järvi	F-ECM	Factor: 5059439112169224613001