2 065 117 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
12786033331027809841	20	63.5	2009-10-28 15:17:34
202991992605844799719	21	67.5	2022-08-18 09:36:57

ECM

Digits	B1	Curves
25	50000	107 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jean-Yves Canart	52FE41AC7300FB17	0
Verified (Factored)	1999-01-29	Michael Croon	52FE41AC7300FB17	503836

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	694F656927F4F944	1	0	1	3
Verified (Factored)	2017-11-15	ATH	694F656927F4F944	1	542735	1	3
Verified	2022-08-19	Wentao Huang	C3EDF35544CE416F	2	1214303	5	3

History

Date	User	Type	Result
2022-08-19	LordJulius	NF	no factor from 2^66 to 2^67
2022-08-19	LordJulius	NF	no factor from 2^65 to 2^66
2022-08-19	LordJulius	NF	no factor from 2^64 to 2^65
2022-08-19	LordJulius	NF	no factor from 2^62 to 2^63
2022-08-19	LordJulius	NF	no factor from 2^1 to 2^62
2022-08-19	Gufesa	CERT	PRP Certification Proof certified good
2022-08-19	Wentao Huang	C-PRP	M2065117/12786033331027809841/202991992605844799719 : C3EDF35544CE416F PRP proof power = 7 PRP: Verified Proof certified good
2022-08-18	TJAOI	F	Factor: 202991992605844799719 / TF: 67-68
2022-03-09	LordJulius	NF	no factor from 2^1 to 2^60
2017-11-15	ATH	C-PRP	M2065117/12786033331027809841 : 694F656927F4F944 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2065117/12786033331027809841 : 694F656927F4F944 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-10-28	KAMCOBILL	F-ECM	Factor: 12786033331027809841
2009-07-23	USAFSS	NF-PM1	B1=20000, B2=260000
2009-01-03	Sturle Sunde	NF	no factor from 2^60 to 2^61