333 068 431 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	1568000
B2 =	357861210

Status	Date	User	Residue	Shift	Software
Unverified	2017-02-12	AirSquirrels	6E819EA2355449__	295639254	CUDALucas v2.05.1

History

Date	User	Type	Result
2024-05-17	Jarod McClintock	NF	no factor TF: 69-72
2023-03-15	Mark Rose	NF-PM1	B1=1568000, B2=357861210
2023-02-01	Mark Rose	NF	no factor TF: 80-81
2023-02-01	Mark Rose	NF	no factor TF: 79-80
2023-02-01	Mark Rose	NF	no factor TF: 78-79
2020-06-29	Kriesel	NF	no factor TF: 76-77
2020-06-29	Kriesel	NF	no factor TF: 77-78
2017-02-12	AirSquirrels	C-LL	6E819EA2355449__
2015-08-01	AirSquirrels	NF	no factor TF: 75-76
2015-08-01	AirSquirrels	NF	no factor TF: 74-75
2015-08-01	AirSquirrels	NF	no factor TF: 73-74
2014-11-27	Carsten Kossendey	NF	no factor TF: 72-73
2014-08-16	Carsten Kossendey	NF	no factor TF: 71-72
2014-08-16	Carsten Kossendey	NF	no factor TF: 70-71
2014-08-16	Carsten Kossendey	NF	no factor TF: 69-70
2012-04-16	LaurV	NF	no factor TF: 66-69
2010-11-03	Architects Cubed	NF	no factor TF: 65-66