332 218 483 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	2585000
B2 =	25850000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-07-11	drisg	87D71DD229C559DC	227383077	1	3
Verified	Certified Good Power=10	2025-12-24	Kriesel	87D71DD229C559DC	0	1	3

History

Date	User	Type	Result
2025-12-24	AERO Compute	CERT	Proof certified good
2025-12-24	Kriesel	C-PRP	Proof Certified Good Proof Power: 10
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-04-01	Clematrics	NF	no factor TF: 79-80
2023-03-31	Mark Rose	NF	no factor TF: 80-81
2023-03-31	Mark Rose	NF	no factor TF: 79-80
2023-02-20	Mark Rose	NF	no factor TF: 78-79
2018-07-11	drisg	C-PRP	87D71DD229C559DC
2018-03-12	drisg	NF-PM1	B1=2585000, B2=25850000
2015-07-06	NR	NF	no factor TF: 77-78
2015-06-25	NR	NF	no factor TF: 76-77
2011-09-19	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-06-09	Sunfish	NF	no factor TF: 74-75
2010-08-30	Sunfish	NF	no factor TF: 73-74
2010-07-17	Sunfish	NF	no factor TF: 72-73
2008-11-27	Bill	NF	no factor TF: 71-72
2008-11-24	Bill	NF	no factor TF: 70-71
2008-11-24	Bill	NF	no factor TF: 69-70
2008-11-23	Team_Inspector	NF	no factor TF: 68-69