9 587 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 1 known prime factor. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
6842693325161318357698161937504324710196297	43	142.3	2009-01-25 15:06:18

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	2517 / 16550

Estimated T-Level: 45.8 ⓘ

TF below 2^147 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	0AC3	0
Verified (Factored)		George Woltman	57B82D29323E0AC3	0
Verified (Factored)		Brian J. Beesley	57B82D29323E0AC3	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	C54C527BF38F2284	1	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	C54C527BF38F2284	1	0	1	3
Verified	2017-12-07	ATH	C54C527BF38F2284	1	5823	1	3
Verified	2020-04-17	Oliver Kruse	3487A93B04092120	1	3165	5	3
Verified	2024-07-01	kkmrkkblmbrbk	3487A93B04092120	1	6554	5	3

History

Date	User	Type	Result
2024-07-01	kkmrkkblmbrbk	C-PRP	M9587/6842693325161318357698161937504324710196297 : 3487A93B04092120 PRP: Verified PRP without proof (small exponent)
2023-06-25	JacobZ	NF-PM1	B1=60000000000, B2=244568457101868900
2020-04-17	Oliver Kruse	C-PRP	M9587/6842693325161318357698161937504324710196297 : 3487A93B04092120 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M9587/6842693325161318357698161937504324710196297 : C54C527BF38F2284 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M9587/6842693325161318357698161937504324710196297 : C54C527BF38F2284 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M9587/known_factors : C54C527BF38F2284 PRP without proof (not generated)
2009-01-25	-Anonymous-	F-ECM	Factor: 6842693325161318357698161937504324710196297