161 673 437 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

No known factors, not tested for primality

TF

No factors below 2⁷⁶

TF target 2⁷⁸

P-1

B1 =	1384000
B2 =	1370067270

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2025-08-16	GPU Factoring	trial factoring		0.00 %	2025-09-08

History

Date	User	Type	Result
2024-09-26	Luke Durant	NF-PM1	B1=1384000, B2=1370067270
2024-08-29	SRBase	NF	no factor from 2^75 to 2^76
2023-03-04	SRBase	NF	no factor from 2^74 to 2^75
2021-11-29	SRBase	NF	no factor from 2^73 to 2^74
2018-12-13	ITS	NF	no factor from 2^72 to 2^73
2018-12-12	ITS	NF	no factor from 2^71 to 2^72
2018-11-01	proxy2222	NF	no factor from 2^70 to 2^71
2018-06-10	proxy2222	NF	no factor from 2^69 to 2^70
2017-03-28	rmaximus	NF	no factor from 2^68 to 2^69
2016-03-24	XZT	NF	no factor from 2^67 to 2^68
2015-05-18	-Anonymous-	NF	no factor from 2^66 to 2^67
2013-03-04	Richard	NF	no factor from 2^65 to 2^66
2011-02-03	runesk	NF	no factor from 2^64 to 2^65
2010-09-02	Architects Cubed	NF	no factor from 2^63 to 2^64