248 993 363 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 2⁷⁶

TF target 2⁷⁹

Factored

Factor	Digits	Bits	Date
56246356593207451132711	23	75.6	2025-01-21 21:35:53

P-1 factors

Date	Factors	B1	B2
2025-01-21	No new factors discovered	50000	50000

History

Date	User	Type	Result
2025-01-21	NStorm	NF-PM1	B1=50000, B2=628740
2025-01-21	NStorm	F-PM1	Factor: 56246356593207451132711 / B1=50000
2025-01-21	NStorm	F	Factor: 56246356593207451132711 / TF: 75-76
2023-07-09	SRBase	NF	no factor TF: 74-75
2023-07-01	SRBase	NF	no factor TF: 74-75
2022-02-06	SRBase	NF	no factor TF: 73-74
2020-11-20	SRBase	NF	no factor TF: 72-73
2020-06-28	SRBase	NF	no factor TF: 71-72
2020-04-30	SRBase	NF	no factor TF: 70-71
2019-03-21	Chabot Prime	NF	no factor TF: 69-70
2018-05-27	vapaddy	NF	no factor TF: 68-69
2016-10-24	rubikvn2100	NF	no factor TF: 67-68
2015-12-14	el grocco	NF	no factor TF: 66-67
2013-10-31	tsc	NF	no factor TF: 65-66
2011-07-24	Richard	NF	no factor TF: 64-65