11 549 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
6307847396197912092892161776777	31	102.3	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	4291 / 9201

Estimated T-Level: 42.3 ⓘ

TF below 2^136 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	D0D072A0D43C5B3F	1	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	D0D072A0D43C5B3F	1	4350	1	3
Verified	2020-04-17	Oliver Kruse	895C844A6B8ADBCE	1	3537	5	3
Verified	2024-07-01	kkmrkkblmbrbk	895C844A6B8ADBCE	1	9231	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-20	6307847396197912092892161776777	100000000000	122192573512709696

History

Date	User	Type	Result
2024-07-01	kkmrkkblmbrbk	C-PRP	M11549/6307847396197912092892161776777 : 895C844A6B8ADBCE PRP: Verified PRP without proof (small exponent)
2023-01-20	-Anonymous-	F-PM1	Factor: 6307847396197912092892161776777 / (P-1, B1=100000000000, B2=122192573512709700)
2020-04-17	Oliver Kruse	C-PRP	M11549/6307847396197912092892161776777 : 895C844A6B8ADBCE PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M11549/6307847396197912092892161776777 : D0D072A0D43C5B3F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11549/6307847396197912092892161776777 : D0D072A0D43C5B3F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11549/6307847396197912092892161776777 : D0D072A0D43C5B3F PRP without proof (not generated)
2016-09-09	kkmrkkblmbrbk	NF-PM1	B1=10000000000, B2=500000000000, E=12
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12