55 932 923 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	670000
B2 =	19765000

Status	Date	User	Residue	Shift
Bad	2012-01-11	daveward2005	5A9D3ACEE7ED51AB	41332522
Verified	2020-01-17	Christoph Zenger	4217F1326730AC07	19691310
Verified	2020-01-21	Team_Inspector	4217F1326730AC07	8044254

History

Date	User	Type	Result
2020-01-21	Team_Inspector	C-LL	4217F1326730AC07
2020-01-17	Christoph Zenger	C-LL	4217F1326730AC07
2019-03-30	Chuck	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^63
2016-01-22	Greg	NF	no factor from 2^72 to 2^73
2012-01-11	daveward2005	C-LL	5A9D3ACEE7ED51AB
2011-11-11	Xyzzy	NF	no factor from 2^71 to 2^72
2011-11-06	Xyzzy	NF	no factor from 2^70 to 2^71
2011-11-06	Xyzzy	NF	no factor from 2^69 to 2^70
2011-11-06	Xyzzy	NF	no factor from 2^68 to 2^69
2011-11-02	rduerr	NF	no factor from 2^68 to 2^69
2011-07-30	S01103	NF-PM1	B1=670000, B2=19765000, E=6
2009-11-15	Sturle Sunde	NF	no factor from 2^67 to 2^68
2009-01-31	lycorn	NF	no factor from 2^66 to 2^67
2009-01-13	lycorn	NF	no factor from 2^65 to 2^66
2009-01-11	lycorn	NF	no factor from 2^64 to 2^65
2009-01-07	1997rj7	NF	no factor from 2^63 to 2^64