63 733 279 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	570000
B2 =	11400000

Status	Date	User	Residue	Shift
Verified	2014-12-05	curtisc	1B5B65954B86B7D7	19555772
Verified	2023-02-03	demfloro	1B5B65954B86B7D7	25943830

History

Date	User	Type	Result
2023-02-03	demfloro	C-LL	1B5B65954B86B7D7
2019-10-25	Chuck	NF	no factor from 2^74 to 2^75
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^63
2014-12-05	curtisc	C-LL	1B5B65954B86B7D7
2013-10-06	TheJudger	NF-PM1	B1=570000, B2=11400000, E=12
2013-09-30	RichD0	NF	no factor from 2^73 to 2^74
2013-07-31	TheJudger	NF	no factor from 2^72 to 2^73
2013-07-31	TheJudger	NF	no factor from 2^71 to 2^72
2012-05-27	gregor	NF	no factor from 2^70 to 2^71
2011-12-29	-Anonymous-	NF	no factor from 2^69 to 2^70
2009-12-20	Geoff Selkirk	NF	no factor from 2^68 to 2^69
2009-12-10	Geoff Selkirk	NF	no factor from 2^67 to 2^68
2009-12-03	Geoff Selkirk	NF	no factor from 2^66 to 2^67
2009-11-19	-Anonymous-	NF	no factor from 2^65 to 2^66
2009-09-12	Mads Johansen	NF	no factor from 2^64 to 2^65
2009-02-26	Wojciech Florek	NF	no factor from 2^63 to 2^64