63 095 183 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷⁶

TF target 2⁷⁴

P-1

B1 =	565000
B2 =	11300000

Status	Date	User	Residue	Shift
Verified	2014-09-08	Jack The Ripper	5FD743419F439E19	42042369
Verified	2022-12-20	Andrey Mitrofanov	5FD743419F439E19	12928560

History

Date	User	Type	Result
2024-05-31	LaurV	NF	no factor from 2^70 to 2^71
2023-11-27	Smok_bmv	NF	no factor from 2^75 to 2^76
2023-11-27	Smok_bmv	NF	no factor from 2^74 to 2^75
2022-12-20	Andrey Mitrofanov	C-LL	5FD743419F439E19
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^63
2014-09-08	Jack The Ripper	C-LL	5FD743419F439E19
2013-06-06	Jerry Hallett	NF-PM1	B1=565000, B2=11300000, E=12
2013-04-10	Jerry Hallett	NF	no factor from 2^73 to 2^74
2013-04-10	Jerry Hallett	NF	no factor from 2^72 to 2^73
2013-04-10	Jerry Hallett	NF	no factor from 2^71 to 2^72
2013-04-06	Carsten Kossendey	NF	no factor from 2^70 to 2^71
2011-12-18	albin_pouilles	NF	no factor from 2^69 to 2^70
2009-10-18	Sturle Sunde	NF	no factor from 2^68 to 2^69
2009-03-27	RoaldS	NF	no factor from 2^67 to 2^68
2009-03-22	wuxiao	NF	no factor from 2^66 to 2^67
2009-03-01	Scott Kurowski	NF	no factor from 2^65 to 2^66
2009-02-23	Sturle Sunde	NF	no factor from 2^64 to 2^65
2009-02-15	Wojciech Florek	NF	no factor from 2^63 to 2^64