101 411 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
202823	6	17.6	old
18862447	8	24.2	2008-07-26 09:16:55
520611622481	12	38.9	2008-07-26 09:16:55

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	271 / 1566

Estimated T-Level: 30.9 ⓘ

TF below 2^98 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	4D74080C20F98C18	3	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	4D74080C20F98C18	3	3908	1	3
Verified	2020-04-17	Oliver Kruse	FBBB32C369853FEE	3	59629	5	3
Verified	2022-04-15	LordJulius	FBBB32C369853FEE	3	48312	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	FBBB32C369853FEE	1	7325	5	3
Verified	2022-11-05	LordJulius	FBBB32C369853FEE	3	48971	5	3

History

Date	User	Type	Result
2022-11-05	LordJulius	C-PRP	M101411/202823/18862447/520611622481 : FBBB32C369853FEE PRP: Verified PRP without proof (small exponent)
2022-05-12	Jorge Coveiro	C-PRP	M101411/202823 : FBBB32C369853FEE PRP: Verified PRP without proof (small exponent)
2022-04-15	LordJulius	C-PRP	M101411/202823/18862447/520611622481 : FBBB32C369853FEE PRP: Verified PRP without proof (small exponent)
2022-04-13	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-13	LordJulius	NF	no factor from 2^60 to 2^61
2022-04-13	LordJulius	NF	no factor from 2^59 to 2^60
2022-04-13	LordJulius	NF	no factor from 2^58 to 2^59
2022-04-13	LordJulius	NF	no factor from 2^57 to 2^58
2021-12-19	Seth_Tr	NF-PM1	B1=1000000000, B2=6736600110240
2020-04-17	Oliver Kruse	C-PRP	M101411/202823/18862447/520611622481 : FBBB32C369853FEE PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M101411/202823/18862447/520611622481 : 4D74080C20F98C18 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M101411/202823/18862447/520611622481 : 4D74080C20F98C18 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M101411/202823/18862447/520611622481 : 4D74080C20F98C18 PRP without proof (not generated)
2016-11-02	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2008-07-26	J Feitsma	F	Factor: 520611622481
2008-07-26	J Feitsma	F	Factor: 18862447