2 079 839 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
91155666214649	14	46.4	old
19951116955909063	17	54.1	2014-11-07 12:07:15
840063986858105691889	21	69.5	2021-09-09 03:31:57

ECM

Digits	B1	Curves
25	50000	213 / 280

Estimated T-Level: 23.8 ⓘ

TF below 2^74 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	1722C91857F3E5D2	2	0	1	3
Verified (Factored)	2017-11-16	kkmrkkblmbrbk	1722C91857F3E5D2	2	329152	1	3
Verified	2021-09-10	_p95holder_	5DDDFCA69D210F2F	3	1684816	5	3
Verified	2021-09-15	LaurV	5DDDFCA69D210F2F	3	1298773	5	3

History

Date	User	Type	Result
2021-09-15	Sharks_w_Lasers	CERT	PRP Certification Proof certified good
2021-09-15	LaurV	C-PRP	M2079839/91155666214649/19951116955909063/840063986858105691889 : 5DDDFCA69D210F2F PRP proof power = 7 PRP: Verified Proof certified good
2021-09-10	_p95holder_	C-PRP	M2079839/91155666214649/19951116955909063/840063986858105691889 : 5DDDFCA69D210F2F PRP: Verified PRP without proof (not generated)
2021-09-09	_p95holder_	F-ECM	Factor: 840063986858105691889 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-16	kkmrkkblmbrbk	C-PRP	M2079839/91155666214649/19951116955909063 : 1722C91857F3E5D2 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2079839/91155666214649/19951116955909063 : 1722C91857F3E5D2 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-11-07	TJAOI	F	Factor: 19951116955909063 / TF: 54-55