2 825 489 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
220388143	9	27.7	old
367430115770273	15	48.4	2014-04-03 10:37:11
437441418939242369733001	24	78.5	2023-01-30 01:43:09

ECM

Digits	B1	Curves
25	50000	106 / 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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-22	Oliver Kruse	E0E431935E097529	2	2590757	5	3
Verified (Factored)	2017-12-07	kkmrkkblmbrbk	E0E431935E097529	2	1150520	5	3
Verified	2023-01-31	LordJulius	E0E431935E097529	3	1089927	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-30	437441418939242369733001	360000	287380170

History

Date	User	Type	Result
2023-01-31	ANONYMOUS	CERT	PRP Certification Proof certified good
2023-01-31	LordJulius	C-PRP	M2825489/220388143/367430115770273/437441418939242369733001 : E0E431935E097529 PRP proof power = 7 PRP: Verified Proof certified good
2023-01-30	USAFSS	F-PM1	Factor: 437441418939242369733001 / (P-1, B1=360000, B2=287380170)
2017-12-07	kkmrkkblmbrbk	C-PRP	M2825489/220388143/367430115770273 : E0E431935E097529 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-22	Oliver Kruse	C-PRP	M2825489/220388143/367430115770273 : E0E431935E097529 PRP: Verified (Factored) PRP without proof (not generated)
2014-04-03	TJAOI	F	Factor: 367430115770273