61 673 371 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 2⁷⁶

TF target 2⁷⁴

P-1

B1 =	585000
B2 =	11846250

Status	Date	User	Residue	Shift
Verified	2014-01-15	Peter	B0250E5441641BD2	25252672
Verified	2022-05-24	Denis Porva	B0250E5441641BD2	18255085

History

Date	User	Type	Result
2022-05-24	Denis Porva	C-LL	B0250E5441641BD2
2020-06-08	-Anonymous-	NF	no factor from 2^75 to 2^76
2020-05-19	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-03-04	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2014-01-15	Peter	C-LL	B0250E5441641BD2
2013-05-12	TheJudger	NF-PM1	B1=585000, B2=11846250, E=6
2013-02-09	RichD0	NF	no factor from 2^72 to 2^73
2013-02-07	SWL551	NF	no factor from 2^71 to 2^72
2012-09-01	Bold_Seeker	NF	no factor from 2^70 to 2^71
2011-11-21	eon_blue_apocalypse	NF	no factor from 2^69 to 2^70
2009-08-25	unconnected	NF	no factor from 2^68 to 2^69
2009-08-24	SAHS Science Dept	NF	no factor from 2^67 to 2^68
2009-08-21	Emma T Kat	NF	no factor from 2^66 to 2^67
2009-08-21	S00030	NF	no factor from 2^65 to 2^66
2009-07-24	Sturle Sunde	NF	no factor from 2^64 to 2^65
2009-04-18	markr	NF	no factor from 2^63 to 2^64