11 701 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 4 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
70207	5	16.1	old
187217	6	17.5	2008-08-26 19:58:35
337339831	9	28.3	2008-08-26 19:58:35
294219304965469714903	21	68.0	2008-08-26 19:58:35

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	3944 / 9201

Estimated T-Level: 42.1 ⓘ

TF below 2^135 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	244D9C8C7EF533DA	4	0	1	3
Verified	No proof (small exponent)	2017-10-02	kkmrkkblmbrbk	244D9C8C7EF533DA	4	0	1	3
Verified	No proof (small exponent)	2017-12-07	ATH	244D9C8C7EF533DA	4	11110	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	1D57C28172EB67A4	4	6231	5	3
Verified	No proof (small exponent)	2024-07-01	kkmrkkblmbrbk	1D57C28172EB67A4	4	4685	5	3

History

Date	User	Type	Result
2025-03-12	masser	NF-PP1	Start=187/71, B1=430000000, B2=429570000000
2025-02-27	masser	NF-PP1	Start=6/5, B1=430000000, B2=429570000000
2025-01-22	masser	NF-PP1	Start=2/7, B1=430000000, B2=429570000000
2024-07-01	kkmrkkblmbrbk	C-PRP	M11701/187217/294219304965469714903/337339831/70207 : 1D57C28172EB67A4
2023-01-20	-anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2020-04-17	Oliver Kruse	C-PRP	M11701/70207/187217/337339831/294219304965469714903 : 1D57C28172EB67A4
2017-12-07	ATH	C-PRP	M11701/70207/187217/337339831/294219304965469714903 : 244D9C8C7EF533DA
2017-10-02	kkmrkkblmbrbk	C-PRP	M11701/70207/187217/337339831/294219304965469714903 : 244D9C8C7EF533DA
2017-09-21	Oliver Kruse	C-PRP	M11701/known_factors : 244D9C8C7EF533DA
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2011-02-05	Oscar Östlin	F	Factor: 4433975820308937689
2008-08-26	-anonymous-	F-ECM	Factor: 294219304965469714903
2008-08-26	-anonymous-	F	Factor: 337339831
2008-08-26	-anonymous-	F	Factor: 187217