332 251 217 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	2965000
B2 =	78572500

Status	Proof	Date	User	Residue	Shift	Type	Base
Reliable	PRP without proof (not generated)	2021-04-15	DRMEDESY	C642E9D64FBA2B__	3138978	1	3

History

Date	User	Type	Result
2024-05-06	James Heinrich	NF	no factor TF: 69-70
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-19	Mark Rose	NF	no factor TF: 80-81
2023-03-19	Mark Rose	NF	no factor TF: 79-80
2023-02-20	Mark Rose	NF	no factor TF: 78-79
2021-04-15	DRMEDESY	C-PRP	C642E9D64FBA2B__
2020-09-25	DRMEDESY	NF-PM1	B1=2965000, B2=78572500
2020-06-01	Team_Inspector	NF	no factor TF: 77-78
2015-08-25	srow7	NF	no factor TF: 76-77
2012-01-24	computer88	NF	no factor TF: 75-76
2012-01-13	computer88	NF	no factor TF: 74-75
2011-10-17	Team_Inspector	NF	no factor TF: 73-74
2011-08-15	Team_Inspector	NF	no factor TF: 72-73
2011-04-28	Christian Geschwentner	NF	no factor TF: 71-72
2010-11-22	Team_Inspector	NF	no factor TF: 70-71
2009-09-12	Architects Cubed	NF	no factor TF: 69-70
2009-03-02	Team_Inspector	NF	no factor TF: 68-69