115 061 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
128511691108822626491858901713249	33	106.7	2013-10-19 11:01:52

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	237 / 1566

Estimated T-Level: 30.8 ⓘ

TF below 2^97 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	61F9	0
Verified (Factored)		Mike Gach	902DB3F9D6F3E1F9	0
Verified (Factored)		Brian J. Beesley	902DB3F9D6F3E1F9	0
Verified (Factored)		Eivind Triel	902DB3F9D6F3E1F9	12793

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	3D9B49E3D4A1EBDD	1	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	3D9B49E3D4A1EBDD	1	20095	1	3
Verified	2020-04-17	Oliver Kruse	AD7196F7A540082C	1	83068	5	3
Verified	2024-02-03	Wentao Huang	AD7196F7A540082C	1	85055	5	3

History

Date	User	Type	Result
2024-02-03	curtisc	CERT	PRP Certification Proof certified good
2024-02-03	Wentao Huang	C-PRP	M115061/128511691108822626491858901713249 : AD7196F7A540082C PRP proof power = 5 PRP: Verified Proof certified good
2022-05-10	LordJulius	NF	no factor from 2^62 to 2^63
2022-05-10	LordJulius	NF	no factor from 2^61 to 2^62
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-17	Oliver Kruse	C-PRP	M115061/128511691108822626491858901713249 : AD7196F7A540082C PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M115061/128511691108822626491858901713249 : 3D9B49E3D4A1EBDD PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M115061/128511691108822626491858901713249 : 3D9B49E3D4A1EBDD PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M115061/128511691108822626491858901713249 : 3D9B49E3D4A1EBDD PRP without proof (not generated)
2013-10-19	lopper	F-ECM	Factor: 128511691108822626491858901713249
2013-09-27	lycorn	NF	no factor from 2^60 to 2^61
2013-01-07	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-01-05	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-01	Sturle Sunde	NF	no factor from 2^58 to 2^59