6 869 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
257051719	9	27.9	old
29214606663573359783916771824036393	35	114.5	old
385091191533689707652819348386271562729067294351	48	158.1	2021-03-25 19:13:49

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1308 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	38ABF344CD059F58	2	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	38ABF344CD059F58	2	0	1	3
Verified (Factored)	2017-12-07	ATH	38ABF344CD059F58	2	4609	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	1EB23EEB19078D2E	2	404	5	3
Verified	2021-03-26	mnd9	1EB23EEB19078D2E	3	3152	5	3
Verified	2021-03-29	LaurV	1EB23EEB19078D2E	3	3422	5	3

History

Date	User	Type	Result
2023-08-17	-Anonymous-	NF-PM1	B1=35000000000, B2=149103333456127050
2021-12-16	Lisander Viaene	NF-PM1	B1=100000000
2021-03-29	LaurV	C-PRP	M6869/257051719/29214606663573359783916771824036393/385091191533689707652819348386271562729067294351 : 1EB23EEB19078D2E PRP: Verified PRP without proof (small exponent)
2021-03-26	mnd9	C-PRP	M6869/257051719/29214606663573359783916771824036393/385091191533689707652819348386271562729067294351 : 1EB23EEB19078D2E PRP: Verified PRP without proof (small exponent)
2021-03-25	Ryan Propper	F-ECM	Factor: 385091191533689707652819348386271562729067294351 / (ECM curve 1, B1=43000000, B2=198654756318, Sigma=15775481255543476242)
2020-04-17	Oliver Kruse	C-PRP	M6869/257051719/29214606663573359783916771824036393 : 1EB23EEB19078D2E PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M6869/257051719/29214606663573359783916771824036393 : 38ABF344CD059F58 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M6869/257051719/29214606663573359783916771824036393 : 38ABF344CD059F58 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M6869/known_factors : 38ABF344CD059F58 PRP without proof (not generated)