155 640 301 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: 1 known prime factor

Trial Factored to 2⁷⁷

TF target 2⁷⁸

Factored

Factor	Digits	Bits	Date
99663275586070893479161	23	76.4	2024-11-08 11:46:10

History

Date	User	Type	Result
2025-01-20	Samuel Schmidt	F	Factor: 99663275586070893479161 / TF: 76-77
2024-11-08	Samuel Schmidt	F	Factor: 99663275586070893479161 / TF: 76-77
2024-08-15	SRBase	NF	no factor TF: 75-76
2024-05-06	Greg	NF	no factor TF: 68-69
2023-02-18	SRBase	NF	no factor TF: 74-75
2021-11-15	SRBase	NF	no factor TF: 73-74
2017-12-17	David Hruska	NF	no factor TF: 72-73
2017-11-05	David Hruska	NF	no factor TF: 71-72
2017-10-14	David Hruska	NF	no factor TF: 70-71
2017-08-26	La Güira	NF	no factor TF: 69-70
2016-07-19	Josh Famestad	NF	no factor TF: 68-69
2016-05-08	Brandon	NF	no factor TF: 67-68
2015-04-12	Ralf F.	NF	no factor TF: 66-67
2013-02-04	sasaki3	NF	no factor TF: 65-66
2011-01-23	sasaki3	NF	no factor TF: 64-65