153 270 947 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
55449373237856486262491471	26	85.5	2025-03-16 18:14:53

P-1 factors

Date	Factors	B1	B2
2025-03-16	55449373237856486262491471	1092000	338014950

History

Date	User	Type	Result
2025-03-16	Dmitry Bolshakov	F-PM1	Factor: 55449373237856486262491471 / B1=1092000, B2=338014950
2025-01-12	Dimi09445	NF	no factor TF: 76-77
2025-01-02	Dimi09445	NF	no factor TF: 76-77
2024-08-06	SRBase	NF	no factor TF: 75-76
2017-11-19	hkt	NF	no factor TF: 74-75
2017-11-19	hkt	NF	no factor TF: 73-74
2017-11-19	hkt	NF	no factor TF: 72-73
2017-11-19	hkt	NF	no factor TF: 71-72
2017-11-19	hkt	NF	no factor TF: 70-71
2016-06-28	Smok_bmv	NF	no factor TF: 69-70
2016-06-25	Derek	NF	no factor TF: 68-69
2016-04-26	sasaki	NF	no factor TF: 67-68
2015-04-02	tsc	NF	no factor TF: 66-67
2013-01-31	Richard	NF	no factor TF: 65-66
2011-01-19	Uschinator	NF	no factor TF: 64-65
2010-06-24	subgenius	NF	no factor TF: 63-64