2 560 279 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
1945812041	10	30.9	old
13702613209	11	33.7	2008-07-14 20:25:01
115271528466487	15	46.7	2014-02-19 11:28:19
1085769984988279	16	49.9	2014-05-16 11:27:11
115180291700932939143835316359112502001	39	126.4	2018-12-21 00:10:31

ECM

Digits	B1	Curves
25	50000	99 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-15	Oliver Kruse	0A426E2302EFD5C6	4	1465448	5	3
Verified (Factored)	2017-12-01	kkmrkkblmbrbk	0A426E2302EFD5C6	4	843430	5	3
Verified	2018-12-21	ATH	0A426E2302EFD5C6	5	1890457	5	3

P-1 factors

Date	Factor	B1	B2
2018-12-21	115180291700932939143835316359112502001	2000000	60000000

History

Date	User	Type	Result
2018-12-21	ATH	C-PRP	M2560279/1945812041/13702613209/115271528466487/1085769984988279/115180291700932939143835316359112502001 : 0A426E2302EFD5C6 PRP: Verified PRP without proof (not generated)
2018-12-21	alpertron	F-PM1	Factor: 115180291700932939143835316359112502001 / (P-1, B1=2000000, B2=60000000, E=12)
2017-12-01	kkmrkkblmbrbk	C-PRP	M2560279/1945812041/13702613209/115271528466487/1085769984988279 : 0A426E2302EFD5C6 PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2560279/1945812041/13702613209/115271528466487/1085769984988279 : 0A426E2302EFD5C6 PRP: Verified PRP without proof (not generated)
2014-05-16	TJAOI	F	Factor: 1085769984988279
2014-02-19	TJAOI	F	Factor: 115271528466487
2008-07-14	George Woltman	F-ECM	Factor: 13702613209