2 097 829 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
27694718875279667297	20	64.6	2009-11-08 14:03:11

ECM

Digits	B1	Curves
25	50000	136 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^70 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-02-08	Ed Winchester	D358480C83162938	0
Verified (Factored)	1999-01-29	Charles Dorian	D358480C83162938	2031833

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-06	Oliver Kruse	F0E299F281AF4D88	1	0	1	3
Verified	2017-11-17	kkmrkkblmbrbk	F0E299F281AF4D88	1	898381	1	3

History

Date	User	Type	Result
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-17	kkmrkkblmbrbk	C-PRP	M2097829/27694718875279667297 : F0E299F281AF4D88 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2097829/27694718875279667297 : F0E299F281AF4D88 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-11-08	KAMCOBILL	F-ECM	Factor: 27694718875279667297
2009-07-31	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61