6 343 993 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
2015055757725774825910153	25	80.7	2013-05-08 13:42:20

ECM

Digits	B1	Curves
25	50000	3 / 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)	1998-12-21	Stephan Grupp	AF4E038DAE2DAC0E	0
Verified (Factored)	2001-06-03	Pawel Krzesniak	AF4E038DAE2DAC0E	4046095

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-29	kkmrkkblmbrbk	34E06A15E51E9EFD	1	112052	5	3
Verified	2018-09-27	rucio	34E06A15E51E9EFD	1	4768426	5	3

P-1 factors

Date	Factor	B1	B2
2013-05-08	2015055757725774825910153	120000	2370000

History

Date	User	Type	Result
2018-09-27	rucio	C-PRP	M6343993/2015055757725774825910153 : 34E06A15E51E9EFD PRP: Verified PRP without proof (not generated)
2017-10-29	kkmrkkblmbrbk	C-PRP	M6343993/2015055757725774825910153 : 34E06A15E51E9EFD PRP: Verified PRP without proof (not generated)
2013-05-08	Squeeky_Squirrel	F-PM1	Factor: 2015055757725774825910153