332 277 391 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 =	2174000
B2 =	92866000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=10	2025-11-17	CasaPietra	3C2031A3B849284F	216489216	1	3

History

Date	User	Type	Result
2025-11-19	KoroKoroKuruKuru	CERT	Proof certified good
2025-11-17	CasaPietra	C-PRP	3C2031A3B849284F Proof Certified Good Proof Power: 10
2025-02-12	Siarhei P. 😜	NF-PM1	B1=2174000, B2=92866000
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2020-11-09	Siarhei P. 😜	NF	no factor TF: 80-81
2020-11-09	Siarhei P. 😜	NF	no factor TF: 79-80
2020-11-09	Siarhei P. 😜	NF	no factor TF: 78-79
2013-08-20	ktony	NF	no factor TF: 77-78
2013-08-20	ktony	NF	no factor TF: 76-77
2013-08-20	ktony	NF	no factor TF: 75-76
2013-08-20	ktony	NF	no factor TF: 74-75
2012-12-19	Team_Inspector	NF	no factor TF: 73-74
2012-02-28	Team_Inspector	NF	no factor TF: 72-73
2011-11-10	Grant McCracken	NF	no factor TF: 71-72
2011-05-21	Grant McCracken	NF	no factor TF: 70-71
2010-05-02	Grant McCracken	NF	no factor TF: 69-70
2009-07-13	Sunfish	NF	no factor TF: 68-69