282 809 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
86987793386288202324852001106017	32	106.1	2015-12-27 13:39:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	510 / 640

Estimated T-Level: 29.0 ⓘ

TF below 2^91 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	5B15	0
Verified (Factored)		Unknown	5B15	0
Verified (Factored)		Brian J. Beesley	1550F34942A05B15	0
Verified (Factored)		Eivind Triel	1550F34942A05B15	117097
Verified (Factored)	2002-03-03	Brian J. Beesley	1550F34942A05B15	129980

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	39059AAA88362432	1	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	39059AAA88362432	1	192260	1	3
Unverified (Reliable)	2020-04-17	Oliver Kruse	3627B9C80F110D__	1	121607	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-17	Oliver Kruse	C-PRP	M282809/86987793386288202324852001106017 : 3627B9C80F110D__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M282809/86987793386288202324852001106017 : 39059AAA88362432 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M282809/86987793386288202324852001106017 : 39059AAA88362432 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M282809/86987793386288202324852001106017 : 39059AAA88362432 PRP without proof (not generated)
2015-12-27	bam	F-ECM	Factor: 86987793386288202324852001106017 / (ECM curve 3, B1=250000, B2=25000000)
2015-08-13	NR	NF	no factor from 2^61 to 2^62
2013-11-02	David Campeau	NF-PM1	B1=5300000, B2=201400000, E=12
2013-06-24	lycorn	NF	no factor from 2^60 to 2^61
2012-05-15	Joss	NF-PM1	B1=5125604
2012-02-26	Joss	NF-PM1	B1=2135668
2011-02-18	Joss	NF-PM1	B1=2000000
2009-01-27	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-01	Sturle Sunde	NF	no factor from 2^58 to 2^59