2 316 511 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
946003378686458272660944377	27	89.6	2017-09-02 07:59:44

ECM

Digits	B1	Curves
25	50000	83 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Clark	B24CCD0F6ABA0EEA	0
Verified (Factored)	1999-03-01	David Phillips	B24CCD0F6ABA0EEA	694290

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-11	Oliver Kruse	B367E8903AABEAAB	1	0	1	3
Verified	2017-11-23	ATH	B367E8903AABEAAB	1	1607426	1	3

History

Date	User	Type	Result
2021-04-05	ViliamF	NF-PM1	B1=5000000, B2=305000000
2018-02-26	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2017-11-23	ATH	C-PRP	M2316511/946003378686458272660944377 : B367E8903AABEAAB PRP: Verified PRP without proof (not generated)
2017-10-11	Oliver Kruse	C-PRP	M2316511/946003378686458272660944377 : B367E8903AABEAAB PRP: Verified PRP without proof (not generated)
2017-09-02	bam	F-ECM	Factor: 946003378686458272660944377 / (ECM curve 3, B1=50000, B2=5000000)
2017-06-03	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-10-23	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-03	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-03	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-12-06	Jerry Hallett	NF	no factor from 2^62 to 2^63
2012-05-24	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2010-02-19	Bud	NF-PM1	B1=500000, B2=10000000, E=12
2009-01-13	Sturle Sunde	NF	no factor from 2^60 to 2^61