61 386 821 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 2⁷⁴

P-1

B1 =	580000
B2 =	12035000

Status	Date	User	Residue	Shift
Verified	2013-06-18	Six Blue Boxes	2E4DC29C0C7990AD	25083250
Verified	2022-04-14	Denis Porva	2E4DC29C0C7990AD	14071222

History

Date	User	Type	Result
2022-04-14	Denis Porva	C-LL	2E4DC29C0C7990AD
2016-03-11	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2013-06-18	Six Blue Boxes	C-LL	2E4DC29C0C7990AD
2013-04-21	TheJudger	NF-PM1	B1=580000, B2=12035000, E=12
2013-02-01	Kevin Jaget	NF	no factor from 2^72 to 2^73
2013-02-01	Kevin Jaget	NF	no factor from 2^71 to 2^72
2012-10-26	S00030	NF	no factor from 2^70 to 2^71
2011-10-31	dmaine	NF	no factor from 2^69 to 2^70
2009-08-08	unconnected	NF	no factor from 2^68 to 2^69
2009-08-07	korva	NF	no factor from 2^67 to 2^68
2009-08-01	korva	NF	no factor from 2^66 to 2^67
2009-07-26	S36049	NF	no factor from 2^65 to 2^66
2009-07-24	Sturle Sunde	NF	no factor from 2^64 to 2^65
2009-06-02	Architects Cubed	NF	no factor from 2^63 to 2^64