333 020 291 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 =	5310000
B2 =	5310000

Status	Date	User	Residue	Shift	Software
Unverified	2015-02-14	dure	194F96275D7E2E__	224061506	Windows 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2023-02-04	Mark Rose	NF	no factor TF: 80-81
2023-02-04	Mark Rose	NF	no factor TF: 79-80
2023-02-04	Mark Rose	NF	no factor TF: 78-79
2023-02-04	Mark Rose	NF	no factor TF: 77-78
2015-02-14	dure	C-LL	194F96275D7E2E__
2013-06-01	dure	NF	no factor TF: 76-77
2013-05-23	duremar	NF-PM1	B1=5310000
2012-08-09	Sergey Nosov	NF	no factor TF: 69-76
2012-04-15	LaurV	NF	no factor TF: 66-69
2010-11-02	Architects Cubed	NF	no factor TF: 65-66

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