120 271 181 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 2⁷⁹

TF target 2⁷⁷

P-1

B1 =	593000
B2 =	27820380

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2024-09-19	TSRPrime	9FF8991780DBCD48	110394978	1	3

History

Date	User	Type	Result
2024-09-23	MartianPig	NF	no factor TF: 78-79
2024-09-19	MartianPig	NF	no factor TF: 77-78
2024-09-19	kerni3	CERT	Proof certified good
2024-09-19	TSRPrime	C-PRP	9FF8991780DBCD48 Proof Certified Good Proof Power: 8
2023-11-22	mikereedwt	NF-PM1	B1=593000, B2=27820380
2022-06-13	TheJudger	NF	no factor TF: 76-77
2021-07-11	TheJudger	NF	no factor TF: 75-76
2021-07-11	TheJudger	NF	no factor TF: 74-75
2021-06-07	Flaukrotist	NF	no factor TF: 73-74
2020-10-20	SRBase	NF	no factor TF: 72-73
2015-05-16	endless_mike	NF	no factor TF: 71-72
2015-05-11	Earle Lowe	NF	no factor TF: 70-71
2015-04-26	Smok_bmv	NF	no factor TF: 69-70
2015-04-19	SMoffat	NF	no factor TF: 68-69
2015-01-14	caddr	NF	no factor TF: 67-68
2013-10-16	E.Lechner	NF	no factor TF: 66-67
2012-08-06	Richard	NF	no factor TF: 65-66
2010-10-18	Thomas Stork	NF	no factor TF: 64-65
2010-05-16	Mr-Plonk	NF	no factor TF: 63-64