1 843 487 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
180661727	9	27.4	old
1492756994879567	16	50.4	2014-05-27 11:42:18
42539782418183734268911	23	75.2	2020-10-05 18:18:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	F41565CE99DAE6D2	2	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	F41565CE99DAE6D2	2	1678079	1	3
Verified	2020-10-06	Team_Inspector	014FA2090B7D9513	3	1245923	5	3

History

Date	User	Type	Result
2022-04-05	Joss	NF-PM1	B1=1000000, B2=188329050
2020-10-06	Ben Delo	CERT	PRP Certification Proof certified good
2020-10-06	Team_Inspector	C-PRP	M1843487/180661727/1492756994879567/42539782418183734268911 : 014FA2090B7D9513 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-05	_p95holder_	F-ECM	Factor: 42539782418183734268911 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M1843487/180661727/1492756994879567 : F41565CE99DAE6D2 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1843487/180661727/1492756994879567 : F41565CE99DAE6D2 PRP: Verified (Factored) PRP without proof (not generated)
2014-05-27	TJAOI	F	Factor: 1492756994879567