6 235 739 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
116800657262651086743553	24	76.6	2011-09-28 09:07:49

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-12-27	Claudio Arlandini	4548496AD8DD46E4	0
Verified (Factored)	2001-02-04	Jeffrey Kirk	4548496AD8DD46E4	3786282

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-13	kkmrkkblmbrbk	73BB341BBA73B3CC	1	1520509	5	3
Verified	2018-10-01	Nesowa	73BB341BBA73B3CC	1	5266864	5	3

History

Date	User	Type	Result
2018-10-01	Nesowa	C-PRP	M6235739/116800657262651086743553 : 73BB341BBA73B3CC PRP: Verified PRP without proof (not generated)
2017-10-13	kkmrkkblmbrbk	C-PRP	M6235739/116800657262651086743553 : 73BB341BBA73B3CC PRP: Verified PRP without proof (not generated)
2011-09-28	JimBa	F-ECM	Factor: 116800657262651086743553
2011-05-15	markr	NF-PM1	B1=115000, B2=2271250, E=6