11 257 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
1323113634759436900250661808529973403087	40	130.0	2009-03-05 15:09:11

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1293 / 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	Shift
Verified (Factored)		Unknown	1FE5	0
Verified (Factored)		George Woltman	5D8FC21508501FE5	0
Verified (Factored)		Brian J. Beesley	5D8FC21508501FE5	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	A2A1837E586C96A3	1	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	A2A1837E586C96A3	1	0	1	3
Verified	2017-12-07	ATH	A2A1837E586C96A3	1	7454	1	3
Unverified	2020-04-17	Oliver Kruse	E46F0639BFC091__	1	2246	5	3

History

Date	User	Type	Result
2022-12-30	-Anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2020-04-17	Oliver Kruse	C-PRP	M11257/1323113634759436900250661808529973403087 : E46F0639BFC091__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M11257/1323113634759436900250661808529973403087 : A2A1837E586C96A3 PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M11257/1323113634759436900250661808529973403087 : A2A1837E586C96A3 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11257/1323113634759436900250661808529973403087 : A2A1837E586C96A3 PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2009-03-05	-Anonymous-	F-ECM	Factor: 1323113634759436900250661808529973403087