11 399 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
1367881	7	20.4	old
21834921289	11	34.3	2008-08-26 19:58:34
1244830860623442852069966099754427442137	40	129.9	2019-04-19 21:27:11

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	3730 / 9201

Estimated T-Level: 42.0 ⓘ

TF below 2^135 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	7568F2B53BA26153	2	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	7568F2B53BA26153	2	5538	1	3
Verified	2019-04-20	ANONYMOUS	D3F4C45279F31845	3	238	5	3
Verified	2019-04-20	artorollo	D3F4C45279F31845	3	9057	5	3

History

Date	User	Type	Result
2023-01-20	-Anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2019-04-20	artorollo	C-PRP	M11399/1367881/21834921289/1244830860623442852069966099754427442137 : D3F4C45279F31845 PRP: Verified PRP without proof (small exponent)
2019-04-20	ANONYMOUS	C-PRP	M11399/1367881/21834921289/1244830860623442852069966099754427442137 : D3F4C45279F31845 PRP: Verified PRP without proof (small exponent)
2019-04-19	alex	F-ECM	Factor: 1244830860623442852069966099754427442137 / (ECM curve 3323, B1=3000000, B2=300000000, Sigma=8504088586007604)
2017-10-12	kkmrkkblmbrbk	C-PRP	M11399/1367881/21834921289 : 7568F2B53BA26153 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11399/1367881/21834921289 : 7568F2B53BA26153 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11399/1367881/21834921289 : 7568F2B53BA26153 PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2008-08-26	-Anonymous-	F	Factor: 21834921289