13 043 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
1408933449841018324321854263	28	90.2	old
8468066034717310497171346330775527	34	112.7	2009-06-22 01:02:25

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1388 / 9201

Estimated T-Level: 40.8 ⓘ

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	2017-09-21	Oliver Kruse	05246AC07C412837	2	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	05246AC07C412837	2	0	1	3
Verified	2017-12-07	ATH	05246AC07C412837	2	3738	1	3
Unverified	2020-04-17	Oliver Kruse	34B8F305946A91__	2	10049	5	3

History

Date	User	Type	Result
2023-10-10	-Anonymous-	NF-PM1	B1=100000000000, B2=122154521813133810
2023-05-16	JacobZ	NF-PM1	B1=8500000000, B2=33523232658715800
2020-04-17	Oliver Kruse	C-PRP	M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 34B8F305946A91__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837 PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M13043/1408933449841018324321854263/8468066034717310497171346330775527 : 05246AC07C412837 PRP without proof (not generated)
2009-06-22	Rob_Dee	F-ECM	Factor: 8468066034717310497171346330775527