332 410 921 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 =	1000000
B2 =	30000000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2020-08-28	Albrecht Heeffer	C9F4F12870DF157E	0	1	3

History

Date	User	Type	Result
2024-06-05	LaurV	NF	no factor TF: 71-72
2023-03-09	Mark Rose	NF	no factor TF: 80-81
2020-09-06	George Woltman	CERT	Proof certified good
2020-09-06	Numberwang	CERT	Certification bad
2020-08-28	Albrecht Heeffer	C-PRP	C9F4F12870DF157E Proof Certified Good Proof Power: 8
2020-08-10	Albrecht Heeffer	NF-PM1	B1=1000000, B2=30000000
2017-10-06	Random GPUs	NF	no factor TF: 79-80
2017-10-06	Random GPUs	NF	no factor TF: 78-79
2017-10-06	Random GPUs	NF	no factor TF: 77-78
2017-10-06	Random GPUs	NF	no factor TF: 76-77
2017-10-06	Random GPUs	NF	no factor TF: 75-76
2015-02-15	Jacques MOLNE	NF	no factor TF: 74-75
2015-02-02	Xebecer	NF	no factor TF: 73-74
2013-04-07	kracker	NF	no factor TF: 72-73
2013-02-27	Architects Cubed	NF	no factor TF: 71-72
2012-10-09	kracker	NF	no factor TF: 70-71
2012-06-30	LaurV	NF	no factor TF: 69-70
2011-04-18	Grant McCracken	NF	no factor TF: 68-69
2011-04-18	Grant McCracken	NF	no factor TF: 67-68