165 877 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
1205878436243519761	19	60.1	2007-08-16 18:20:23
2841093639983829241943	22	71.3	2014-12-19 13:15:05
59430345257870745898671487	26	85.6	2014-12-19 13:15:06

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	162 / 1566

Estimated T-Level: 30.5 ⓘ

TF below 2^96 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	9065C2DE59F157EE	3	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	9065C2DE59F157EE	3	44866	1	3
Verified	2020-04-17	Oliver Kruse	A617704C2363CC27	3	127067	5	3
Verified	2024-02-03	Wentao Huang	A617704C2363CC27	3	135760	5	3

History

Date	User	Type	Result
2024-02-03	curtisc	CERT	PRP Certification Proof certified good
2024-02-03	Wentao Huang	C-PRP	M165877/1205878436243519761/2841093639983829241943/59430345257870745898671487 : A617704C2363CC27 PRP proof power = 5 PRP: Verified Proof certified good
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-17	Oliver Kruse	C-PRP	M165877/1205878436243519761/2841093639983829241943/59430345257870745898671487 : A617704C2363CC27 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M165877/1205878436243519761/2841093639983829241943/59430345257870745898671487 : 9065C2DE59F157EE PRP: Verified PRP without proof (small exponent)
2017-09-21	Oliver Kruse	C-PRP	M165877/1205878436243519761/2841093639983829241943/59430345257870745898671487 : 9065C2DE59F157EE PRP without proof (not generated)
2017-04-24	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2014-12-19	TJAOI	F-ECM	Factor: 59430345257870745898671487 / (ECM curve 7, B1=50000, B2=5000000)
2014-12-19	TJAOI	F-ECM	Factor: 2841093639983829241943 / (ECM curve 19, B1=50000, B2=5000000)
2007-08-16	Team_Bundu	F-ECM	Factor: 1205878436243519761