332 311 081 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 =	100000000

ECM

Digits	B1	Curves
25	50000	20 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=7	2025-01-09	tenethor	C29DC2169A805035	125722328	1	3

History

Date	User	Type	Result
2025-01-10	Kriesel	CERT	Proof certified good
2025-01-09	tenethor	C-PRP	C29DC2169A805035 Proof Certified Good Proof Power: 7
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-01-07	Mark Rose	NF	no factor TF: 80-81
2017-11-21	Yaroslav Berezhko	NF	no factor TF: 79-80
2017-04-08	Yaroslav Berezhko	NF-PM1	B1=1000000, B2=100000000, E=6
2013-04-13	Bill Staffen	NF	no factor TF: 78-79
2013-04-12	Bill Staffen	NF	no factor TF: 77-78
2013-04-10	Bill Staffen	NF	no factor TF: 76-77
2013-04-09	Bill Staffen	NF	no factor TF: 75-76
2013-04-09	Bill Staffen	NF	no factor TF: 74-75
2013-04-09	Bill Staffen	NF	no factor TF: 73-74
2013-01-15	LaurV	NF	no factor TF: 72-73
2012-02-18	Grant McCracken	NF	no factor TF: 71-72
2011-04-30	Grant McCracken	NF	no factor TF: 70-71
2010-05-31	Sunfish	NF	no factor TF: 69-70
2009-08-13	Team_Inspector	NF	no factor TF: 68-69