332 286 161 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	1000000
B2 =	30000000

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-09-23	Albrecht Heeffer	19E9F296D7CD4209	0	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor from 2^67 to 2^68
2023-03-21	Mark Rose	NF	no factor from 2^80 to 2^81
2023-03-21	Mark Rose	NF	no factor from 2^79 to 2^80
2020-09-23	Ben Delo	CERT	PRP Certification CERT proof power = 8 Proof certified good
2020-09-23	Albrecht Heeffer	C-PRP	19E9F296D7CD4209 PRP proof power = 8 PRP: Verified Proof certified good
2020-09-13	Albrecht Heeffer	NF-PM1	B1=1000000, B2=30000000
2020-08-24	el grocco	NF	no factor from 2^78 to 2^79
2020-07-24	Team_Inspector	NF	no factor from 2^77 to 2^78
2018-06-20	Team_Inspector	NF	no factor from 2^76 to 2^77
2013-07-08	blahpy	NF	no factor from 2^75 to 2^76
2013-03-06	AntonioK	NF	no factor from 2^73 to 2^75
2012-10-21	Team_Inspector	NF	no factor from 2^72 to 2^73
2012-02-02	Grant McCracken	NF	no factor from 2^71 to 2^72
2011-05-06	Grant McCracken	NF	no factor from 2^70 to 2^71
2010-06-04	Sunfish	NF	no factor from 2^69 to 2^70
2009-08-01	Team_Inspector	NF	no factor from 2^68 to 2^69