340 139 773 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 2⁸¹

Factored

Factor	Digits	Bits	Date
42458558698394945881183	23	75.2	2025-02-25 22:54:38

History

Date	User	Type	Result
2025-02-25	Ruslan Borisov	F	Factor: 42458558698394945881183 / TF: 75-76
2023-09-29	SRBase	NF	no factor TF: 74-75
2022-03-31	SRBase	NF	no factor TF: 73-74
2021-01-11	SRBase	NF	no factor TF: 72-73
2013-03-30	HBendtz	NF	no factor TF: 71-72
2013-03-30	HBendtz	NF	no factor TF: 70-71
2013-03-30	HBendtz	NF	no factor TF: 69-70
2013-03-30	HBendtz	NF	no factor TF: 68-69
2013-03-30	HBendtz	NF	no factor TF: 67-68
2013-03-30	HBendtz	NF	no factor TF: 66-67
2013-03-30	HBendtz	NF	no factor TF: 65-66
2011-01-22	Architects Cubed	NF	no factor TF: 64-65