4 010 569 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 2⁷²

TF target 2⁶⁵

P-1

B1 =	36095122
B2 =	611527226310

ECM

Digits	B1	Curves
25	50000	179 / 280

Estimated T-Level: 23.2 ⓘ

Status	Date	User	Residue	Shift
Verified	1999-02-21	Tom Cage	644D495069D85F5C	1275902
Verified	2000-01-25	Brian	644D495069D85F5C	154908

History

Date	User	Type	Result
2025-03-31	linament	NF	no factor from 2^71 to 2^72
2024-09-27	yuriy_5-1	NF-PM1	B1=36095122, B2=611527226310
2022-05-27	DRobinsonPE	NF-PM1	B1=6200000, B2=31912850970
2022-03-23	mikr	NF	no factor from 2^70 to 2^71
2021-06-01	ATH	NF-PP1	Start=2/7, B1=2500000, B2=170000000
2019-06-15	mikr	NF	no factor from 2^69 to 2^70
2019-06-15	mikr	NF	no factor from 2^68 to 2^69
2018-09-08	mikr	NF	no factor from 2^67 to 2^68
2017-11-04	mikr	NF-PM1	B1=4600000, B2=125000000, E=12
2016-08-30	kkmrkkblmbrbk	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^63
2015-05-18	snme2pm1	NF	no factor from 2^65 to 2^66
2013-10-07	David Campeau	NF	no factor from 2^64 to 2^65
2013-07-25	Jayder	NF	no factor from 2^63 to 2^64
2009-11-06	GrunwalderGIMP	NF	no factor from 2^1 to 2^63