2 803 061 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
38435572433	11	35.2	old
11295096877039	14	43.4	2008-09-30 14:38:01
251108400004359338807	21	67.8	2021-09-10 12:28:15

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-21	Oliver Kruse	315E0C2F34C83D33	2	2594199	5	3
Verified (Factored)	2017-12-06	kkmrkkblmbrbk	315E0C2F34C83D33	2	212404	5	3
Verified	2021-09-12	Luminescence	315E0C2F34C83D33	3	2284827	5	3

P-1 factors

Date	Factor	B1	B2
2021-09-10	251108400004359338807	1000000	71000000

History

Date	User	Type	Result
2021-09-12	curtisc	CERT	PRP Certification Proof certified good
2021-09-12	Luminescence	C-PRP	M2803061/38435572433/11295096877039/251108400004359338807 : 315E0C2F34C83D33 PRP proof power = 7 PRP: Verified Proof certified good
2021-09-10	Dylan Delgado	F-PM1	Factor: 251108400004359338807 / (P-1, B1=1000000, B2=71000000)
2017-12-06	kkmrkkblmbrbk	C-PRP	M2803061/38435572433/11295096877039 : 315E0C2F34C83D33 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2803061/38435572433/11295096877039 : 315E0C2F34C83D33 PRP: Verified (Factored) PRP without proof (not generated)
2008-09-30	markr	F	Factor: 11295096877039