160 995 761 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 2⁷⁸

TF target 2⁷⁸

P-1

B1 =	1396000
B2 =	1476497880

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-02-22	GdS	4335FCBF926ECC54	0	1	3

History

Date	User	Type	Result
2025-06-04	ihnl	NF	no factor from 2^76 to 2^78
2025-02-23	ReadyToRetire	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-02-22	GdS	C-PRP	4335FCBF926ECC54 PRP proof power = 10 PRP: Verified Proof certified good
2024-10-05	Luke Durant	NF-PM1	B1=1396000, B2=1476497880
2024-08-26	SRBase	NF	no factor from 2^75 to 2^76
2023-03-01	SRBase	NF	no factor from 2^74 to 2^75
2021-11-24	SRBase	NF	no factor from 2^73 to 2^74
2018-06-16	ITS	NF	no factor from 2^72 to 2^73
2018-06-15	Aare Vesi	NF	no factor from 2^71 to 2^72
2018-01-06	Oliver Kruse	NF	no factor from 2^70 to 2^71
2017-12-16	ANONYMOUS	NF	no factor from 2^69 to 2^70
2017-03-27	Xolotl	NF	no factor from 2^68 to 2^69
2016-03-13	XZT	NF	no factor from 2^67 to 2^68
2015-05-13	Richard	NF	no factor from 2^66 to 2^67
2013-02-24	sasaki3	NF	no factor from 2^65 to 2^66
2011-02-03	runesk	NF	no factor from 2^64 to 2^65
2010-06-29	Mr-Plonk	NF	no factor from 2^63 to 2^64