13 714 871 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 2⁷³

TF target 2⁶⁹

P-1

B1 =	2000000
B2 =	1656047250

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2002-01-15	Rohit Namjoshi	D5AFA0625A2F78AF	8315970
Verified	2005-03-06	Sturle Sunde	D5AFA0625A2F78AF	11273560

History

Date	User	Type	Result
2024-01-12	nordi	NF-PM1	B1=2000000, B2=1656047250
2023-12-31	nordi	NF-PM1	B1=2000000
2023-11-08	Naegi Makoto	NF	no factor from 2^72 to 2^73
2021-09-24	Jon Pace	NF	no factor from 2^71 to 2^72
2021-09-05	SRBase	NF	no factor from 2^70 to 2^71
2021-08-08	SRBase	NF	no factor from 2^69 to 2^70
2018-01-14	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-23	-Anonymous-	NF	no factor from 2^67 to 2^68
2016-03-10	Tha	NF-PM1	B1=300000, B2=6000000, E=12
2015-08-16	Nesowa	NF	no factor from 2^66 to 2^67
2014-07-02	Nesowa	NF	no factor from 2^65 to 2^66