153 271 861 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
66175385299421794781478625657	29	95.7	2025-03-16 18:14:57

P-1 factors

Date	Factors	B1	B2
2025-03-16	66175385299421794781478625657	1103000	338014950

History

Date	User	Type	Result
2025-03-16	Dmitry Bolshakov	F-PM1	Factor: 66175385299421794781478625657 / B1=1103000, B2=338014950
2025-01-02	johnniek	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
2021-11-14	SRBase	NF	no factor TF: 73-74
2017-07-28	Summy	NF	no factor TF: 67-68
2017-01-27	La Güira	NF	no factor TF: 72-73
2016-11-16	Adam Buran	NF	no factor TF: 71-72
2016-08-26	Choi4KANG	NF	no factor TF: 70-71
2016-08-05	La Güira	NF	no factor TF: 69-70
2016-08-05	La Güira	NF	no factor TF: 68-69
2016-05-08	Summy	NF	no factor TF: 67-68
2015-04-02	bam	NF	no factor TF: 66-67
2013-01-29	Richard	NF	no factor TF: 65-66
2011-01-19	Charles A. Morris	NF	no factor TF: 64-65
2010-06-25	Sid & Andy	NF	no factor TF: 63-64