11 299 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
271177	6	18.0	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	2934 / 9201

Estimated T-Level: 41.6 ⓘ

TF below 2^133 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-21	Oliver Kruse	501F35F0ACB19932	1	0	1	3
Verified	No proof (small exponent)	2017-10-12	kkmrkkblmbrbk	501F35F0ACB19932	1	10590	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	CCAC4E940AC05A36	1	4292	5	3
Verified	No proof (small exponent)	2024-07-01	kkmrkkblmbrbk	CCAC4E940AC05A36	1	8616	5	3

History

Date	User	Type	Result
2025-02-21	masser	NF-PP1	Start=193/31, B1=640000000, B2=639360000000
2025-02-12	masser	NF-PP1	Start=6/5, B1=640000000, B2=639360000000
2025-01-24	masser	NF-PP1	Start=2/7, B1=640000000, B2=639360000000
2024-07-01	kkmrkkblmbrbk	C-PRP	M11299/271177 : CCAC4E940AC05A36
2023-01-20	-anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2020-04-17	Oliver Kruse	C-PRP	M11299/271177 : CCAC4E940AC05A36
2017-10-12	kkmrkkblmbrbk	C-PRP	M11299/271177 : 501F35F0ACB19932
2017-09-21	Oliver Kruse	C-PRP	M11299/271177 : 501F35F0ACB19932
2017-09-21	Oliver Kruse	C-PRP	M11299/271177 : 501F35F0ACB19932
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12