161 102 521 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

Assigned

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

History

Date	User	Type	Result
2024-08-25	tsc	NF	no factor from 2^75 to 2^76
2018-07-05	E.C.K@slingshot.co.nz	NF	no factor from 2^74 to 2^75
2018-07-05	E.C.K@slingshot.co.nz	NF	no factor from 2^73 to 2^74
2018-07-05	E.C.K@slingshot.co.nz	NF	no factor from 2^72 to 2^73
2018-07-03	eziocm	NF	no factor from 2^71 to 2^72
2018-06-23	eziocm	NF	no factor from 2^70 to 2^71
2018-06-05	proxy2222	NF	no factor from 2^69 to 2^70
2017-03-27	Xolotl	NF	no factor from 2^68 to 2^69
2016-03-15	XZT	NF	no factor from 2^67 to 2^68
2015-05-12	Richard	NF	no factor from 2^66 to 2^67
2013-02-25	Charles A. Morris	NF	no factor from 2^65 to 2^66
2011-02-04	bayanne	NF	no factor from 2^64 to 2^65
2010-09-03	Richard	NF	no factor from 2^63 to 2^64