2 186 773 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
36057667918678835818471	23	74.9	2018-03-17 04:46:04

ECM

Digits	B1	Curves
25	50000	107 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-03-23	David Einstein	FAE4DA81D6456C45	0
Verified (Factored)	1998-03-23	Chad Michael Reiss	FAE4DA81D6456C45	0
Verified (Factored)	1999-02-14	Jim Simpson	FAE4DA81D6456C45	1498542

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-03-19	Oliver Kruse	383BA44BD1E0D635	1	1561527	5	3
Verified	2018-03-20	kkmrkkblmbrbk	383BA44BD1E0D635	1	1667331	5	3

History

Date	User	Type	Result
2018-03-20	kkmrkkblmbrbk	C-PRP	M2186773/36057667918678835818471 : 383BA44BD1E0D635 PRP: Verified PRP without proof (not generated)
2018-03-19	Oliver Kruse	C-PRP	M2186773/36057667918678835818471 : 383BA44BD1E0D635 PRP: Verified PRP without proof (not generated)
2018-03-17	bam	F-ECM	Factor: 36057667918678835818471 / (ECM curve 1, B1=50000, B2=5000000)
2018-02-15	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-11-24	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-13	Joss	NF-PM1	B1=442688, B2=4426880, E=6
2016-01-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-10	Joss	NF-PM1	B1=148702
2014-06-26	-Anonymous-	NF-PM1	B1=119351
2013-12-03	LaurV	NF	no factor from 2^62 to 2^63
2011-01-13	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-08	Joss	NF-PM1	B1=30000
2010-11-06	-Anonymous-	NF-PM1	B1=15000
2009-01-09	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61