11 639 059 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷⁵

TF target 2⁶⁸

P-1

B1 =	12582912
B2 =	109573764300

ECM

Digits	B1	Curves
25	50000	42 / 280

Estimated T-Level: 20.8 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-01-14	Robert Worrall	C3842211769A1DC1	8573423
Verified	2004-08-20	Rich Smith	C3842211769A1DC1	6013018
Verified	2007-05-12	S623722	C3842211769A1DC1	6013018

History

Date	User	Type	Result
2025-03-10	yuriy_5-1	NF	no factor from 2^74 to 2^75
2024-12-06	yuriy_5-1	NF	no factor from 2^73 to 2^74
2024-08-08	yuriy_5-1	NF	no factor from 2^72 to 2^73
2024-04-29	yuriy_5-1	NF-PM1	B1=12582912, B2=109573764300
2022-12-08	Naegi Makoto	NF	no factor from 2^71 to 2^72
2021-08-15	SRBase	NF	no factor from 2^70 to 2^71
2021-08-06	SRBase	NF	no factor from 2^69 to 2^70
2019-12-12	riccardo uberti	NF-PM1	B1=430000, B2=8500000, E=12
2018-01-03	ramgeis	NF	no factor from 2^68 to 2^69
2018-01-03	ramgeis	NF	no factor from 2^67 to 2^68
2016-01-30	VictordeHollander	NF	no factor from 2^66 to 2^67
2014-12-20	Nesowa	NF	no factor from 2^65 to 2^66
2013-11-04	lycorn	NF	no factor from 2^64 to 2^65