63 448 691 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 =	555000
B2 =	10128750

Status	Date	User	Residue	Shift
Verified	2013-10-10	ManuelJC	4A484FE04BDABB38	25132572
Verified	2023-01-09	Sergey Nosov	4A484FE04BDABB38	30105854

History

Date	User	Type	Result
2023-01-09	Sergey Nosov	C-LL	4A484FE04BDABB38
2022-12-18	tottenhoff	NF	no factor from 2^74 to 2^75
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^63
2013-10-10	ManuelJC	C-LL	4A484FE04BDABB38
2013-09-20	RichD0	NF-PM1	B1=555000, B2=10128750
2013-09-08	The Mawn	NF	no factor from 2^73 to 2^74
2013-06-07	kracker	NF	no factor from 2^72 to 2^73
2013-06-03	Juergen Kampmeier	NF	no factor from 2^71 to 2^72
2012-06-01	-Anonymous-	NF	no factor from 2^70 to 2^71
2012-03-24	Gnorfe	NF	no factor from 2^69 to 2^70
2009-10-26	-Anonymous-	NF	no factor from 2^68 to 2^69
2009-03-06	SDSA	NF	no factor from 2^67 to 2^68
2009-03-05	SDSA	NF	no factor from 2^66 to 2^67
2009-03-04	-Anonymous-	NF	no factor from 2^65 to 2^66
2009-03-01	-Anonymous-	NF	no factor from 2^64 to 2^65
2009-02-20	Wojciech Florek	NF	no factor from 2^63 to 2^64