332 236 481 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 =	5670000
B2 =	5670000

Status	Date	User	Residue	Shift	Software
Unverified	2018-11-30	Peter Evans	7D173D48CC83DA__	278189053	Windows 64-bit,Prime95,v28.10,build 1

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-17	Mark Rose	NF	no factor TF: 80-81
2023-02-17	Mark Rose	NF	no factor TF: 79-80
2018-11-30	Peter Evans	C-LL	7D173D48CC83DA__
2013-07-30	Bill Staffen	NF	no factor TF: 78-79
2011-01-03	Tom Duell	NF	no factor TF: 77-78
2011-01-03	Tom Duell	NF	no factor TF: 76-77
2009-10-31	Christoph Anton Mitterer	NF	no factor TF: 75-76
2009-10-18	Christoph Anton Mitterer	NF-PM1	B1=5670000
2009-05-22	Christoph Anton Mitterer	NF	no factor TF: 74-75
2009-05-17	Christoph Anton Mitterer	NF	no factor TF: 73-74
2009-05-14	Christoph Anton Mitterer	NF	no factor TF: 72-73
2009-05-13	Christoph Anton Mitterer	NF	no factor TF: 71-72
2009-05-12	Christoph Anton Mitterer	NF	no factor TF: 70-71
2009-04-29	Team_Inspector	NF	no factor TF: 69-70
2009-01-24	Team_Inspector	NF	no factor TF: 68-69