153 248 867 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
48785406069698093091639407161	29	95.3	2025-03-02 20:21:50

P-1 factors

Date	Factors	B1	B2
2025-03-02	48785406069698093091639407161	1092000	312915900

History

Date	User	Type	Result
2025-03-02	Dmitry Bolshakov	F-PM1	Factor: 48785406069698093091639407161 / B1=1092000, B2=312915900
2025-01-03	zhangst	NF	no factor TF: 76-77
2024-08-06	SRBase	NF	no factor TF: 75-76
2017-11-13	hkt	NF	no factor TF: 74-75
2017-11-13	hkt	NF	no factor TF: 73-74
2017-11-13	hkt	NF	no factor TF: 72-73
2017-11-13	hkt	NF	no factor TF: 71-72
2017-11-13	hkt	NF	no factor TF: 70-71
2016-04-07	mikr	NF	no factor TF: 69-70
2016-04-07	mikr	NF	no factor TF: 68-69
2016-04-07	mikr	NF	no factor TF: 67-68
2015-04-02	guru	NF	no factor TF: 66-67
2013-01-26	FreeTibet	NF	no factor TF: 65-66
2011-01-18	sasaki3	NF	no factor TF: 64-65
2010-06-24	Mr-Plonk	NF	no factor TF: 63-64