332 215 459 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 =	4660000
B2 =	4660000

Status	Date	User	Residue	Shift	Software
Unverified	2017-06-23	jimihimsimi	4C508EF908F9C7__	99287905	Windows 64-bit,Prime95,v26,(aka We4)

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-15	Mark Rose	NF	no factor TF: 80-81
2023-02-15	Mark Rose	NF	no factor TF: 79-80
2023-02-15	Mark Rose	NF	no factor TF: 78-79
2021-03-20	Random GPUs	NF	no factor TF: 77-78
2017-06-23	jimihimsimi	C-LL	4C508EF908F9C7__
2017-06-23	jimihimsimi	NF-PM1	B1=4660000
2015-10-25	Grant McCracken	NF	no factor TF: 76-77
2011-09-27	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-05-25	Sunfish	NF	no factor TF: 74-75
2009-02-18	Usman	NF	no factor TF: 73-74
2009-01-21	Usman	NF	no factor TF: 72-73
2009-01-08	Usman	NF	no factor TF: 71-72
2008-12-30	Usman	NF	no factor TF: 70-71
2008-12-27	Usman	NF	no factor TF: 69-70
2008-12-25	Sturle Sunde	NF	no factor TF: 68-69