332 276 261 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 =	92865000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2025-09-30	Chrit Atkinson	11AD7A2F214B3B37	108831711	1	3

History

Date	User	Type	Result
2025-09-30	Kriesel	CERT	Proof certified good
2025-09-30	Chrit Atkinson	C-PRP	11AD7A2F214B3B37 Proof Certified Good Proof Power: 8
2025-02-12	Siarhei P. 😜	NF-PM1	B1=2174000, B2=92865000
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
2013-08-07	ktony	NF	no factor TF: 77-78
2013-08-07	ktony	NF	no factor TF: 76-77
2013-08-07	ktony	NF	no factor TF: 75-76
2013-08-07	ktony	NF	no factor TF: 74-75
2012-11-18	Team_Inspector	NF	no factor TF: 73-74
2012-01-31	Team_Inspector	NF	no factor TF: 72-73
2011-10-07	Grant McCracken	NF	no factor TF: 71-72
2011-06-04	Grant McCracken	NF	no factor TF: 70-71
2010-05-10	Grant McCracken	NF	no factor TF: 69-70
2009-07-11	Sunfish	NF	no factor TF: 68-69