2 068 039 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
397198528200344209	18	58.5	old
356811151632298711009	21	68.3	2022-04-28 17:10:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	155 / 640

Estimated T-Level: 26.2 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Joel Armengaud	D53E875147E0B7A9	0
Verified (Factored)	1999-01-29	Scott Morgan	D53E875147E0B7A9	235174

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	5DCB0D84A15144BF	1	0	1	3
Verified (Factored)	2017-11-16	kkmrkkblmbrbk	5DCB0D84A15144BF	1	763377	1	3
Verified	2022-04-28	aperson1	4BC7E22249AED5E3	2	305604	5	3
Verified	2022-05-05	_p95holder_	4BC7E22249AED5E3	2	820592	5	3

History

Date	User	Type	Result
2022-05-05	_p95holder_	C-PRP	M2068039/397198528200344209/356811151632298711009 : 4BC7E22249AED5E3 PRP: Verified PRP without proof (not generated)
2022-04-28	lajo321	CERT	PRP Certification Proof certified good
2022-04-28	aperson1	C-PRP	M2068039/397198528200344209/356811151632298711009 : 4BC7E22249AED5E3 PRP proof power = 7 PRP: Verified Proof certified good
2022-04-28	_p95holder_	F-ECM	Factor: 356811151632298711009 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-16	kkmrkkblmbrbk	C-PRP	M2068039/397198528200344209 : 5DCB0D84A15144BF PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2068039/397198528200344209 : 5DCB0D84A15144BF PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12