153 020 971 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 2⁷⁷

Factored

Factor	Digits	Bits	Date
177858355812531736326962729	27	87.2	2025-02-02 17:46:42

P-1 factors

Date	Factors	B1	B2
2025-02-02	177858355812531736326962729	1070000	1070000

History

Date	User	Type	Result
2025-02-02	Dmitry Bolshakov	F-PM1	Factor: 177858355812531736326962729 / B1=1070000
2025-01-06	Jurzal	NF	no factor TF: 76-77
2024-08-06	SRBase	NF	no factor TF: 75-76
2023-02-14	SRBase	NF	no factor TF: 74-75
2021-11-15	SRBase	NF	no factor TF: 73-74
2017-09-08	David Hruska	NF	no factor TF: 72-73
2017-08-01	Andrew B	NF	no factor TF: 71-72
2017-07-25	PALKOTAMAS	NF	no factor TF: 70-71
2014-09-27	La Güira	NF	no factor TF: 69-70
2014-09-27	La Güira	NF	no factor TF: 68-69
2014-09-27	La Güira	NF	no factor TF: 66-68
2013-01-25	Chih-Wei Huang	NF	no factor TF: 65-66
2011-01-18	Torchwood Institute	NF	no factor TF: 64-65
2010-06-24	subgenius	NF	no factor TF: 63-64