260 213 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
25002826319	11	34.5	old
28754985893582569922567059092801625271	38	124.4	2016-10-24 03:01:02

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	416 / 640

Estimated T-Level: 28.3 ⓘ

TF below 2^89 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	2F3B9EAAD4495971	2	0	1	3
Verified	2017-10-12	Oliver Kruse	2F3B9EAAD4495971	2	109769	1	3
Verified	2017-11-06	kkmrkkblmbrbk	2F3B9EAAD4495971	2	224349	1	3
Unverified (Reliable)	2020-04-17	Oliver Kruse	AB9C4DB2D3C8D7__	2	100274	5	3

P-1 factors

Date	Factor	B1	B2
2016-10-24	28754985893582569922567059092801625271	5000000	0

History

Date	User	Type	Result
2022-05-02	Oliver Kruse	NF-PM1	B1=30000000, B2=10035812696910
2021-09-15	Oliver Kruse	NF-PM1	B1=30000000, B2=3000000000, E=24
2020-04-17	Oliver Kruse	C-PRP	M260213/25002826319/28754985893582569922567059092801625271 : AB9C4DB2D3C8D7__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M260213/25002826319/28754985893582569922567059092801625271 : 2F3B9EAAD4495971 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M260213/25002826319/28754985893582569922567059092801625271 : 2F3B9EAAD4495971 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M260213/known_factors : 2F3B9EAAD4495971 PRP without proof (not generated)
2016-10-24	kkmrkkblmbrbk	F-PM1	Factor: 28754985893582569922567059092801625271 / (P-1, B1=5000000)