183 828 779 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: 1 known prime factor

Factored

Factor	Digits	Bits	Date
66716920209226207091551	23	75.8	2024-10-12 07:41:54

History

Date	User	Type	Result
2025-06-03	Greg	F	Factor: 66716920209226207091551 / TF: 75-76
2024-10-12	SRBase	F	Factor: 66716920209226207091551 / TF: 75-76*
2023-04-12	SRBase	NF	no factor from 2^74 to 2^75
2022-01-12	SRBase	NF	no factor from 2^73 to 2^74
2019-05-26	Matthaeus	NF	no factor from 2^72 to 2^73
2019-05-20	jeffp2662	NF	no factor from 2^71 to 2^72
2018-12-06	Zenghui	NF	no factor from 2^70 to 2^71
2018-10-05	Chabot Prime	NF	no factor from 2^69 to 2^70
2017-06-19	ANONYMOUS	NF	no factor from 2^68 to 2^69
2016-07-13	netsurfer	NF	no factor from 2^67 to 2^68
2015-08-06	greg3ll	NF	no factor from 2^66 to 2^67
2013-05-14	Oscar G	NF	no factor from 2^65 to 2^66
2011-03-31	Richard	NF	no factor from 2^64 to 2^65
2010-07-26	sasaki3	NF	no factor from 2^63 to 2^64