12 653 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
2421353999	10	31.2	old
34300536887	11	35.0	2008-08-26 19:58:37
13317404353830791	17	53.6	2008-08-26 19:58:38

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1267 / 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	2017-09-21	Oliver Kruse	960587C11EF52727	3	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	960587C11EF52727	3	0	1	3
Verified	2017-12-07	ATH	960587C11EF52727	3	11719	1	3
Unverified	2020-04-17	Oliver Kruse	0ACA3B8E76D918__	3	4062	5	3

History

Date	User	Type	Result
2023-05-13	Anton Repko	NF-PM1	B1=100000000000, B2=120417199046794650
2022-02-05	Joss	NF-PM1	B1=1000000, B2=3910366209750
2020-04-17	Oliver Kruse	C-PRP	M12653/2421353999/34300536887/13317404353830791 : 0ACA3B8E76D918__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M12653/2421353999/34300536887/13317404353830791 : 960587C11EF52727 PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M12653/2421353999/34300536887/13317404353830791 : 960587C11EF52727 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12653/2421353999/34300536887/13317404353830791 : 960587C11EF52727 PRP without proof (not generated)
2008-08-26	-Anonymous-	F-PM1	Factor: 13317404353830791
2008-08-26	-Anonymous-	F	Factor: 34300536887