356 625 553 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
40856923056306267197783	23	75.1	2025-03-14 17:31:16

History

Date	User	Type	Result
2025-03-14	NStorm	F	Factor: 40856923056306267197783 / TF: 75-76
2023-10-19	SRBase	NF	no factor TF: 74-75
2022-04-15	SRBase	NF	no factor TF: 73-74
2021-01-17	SRBase	NF	no factor TF: 72-73
2017-05-21	Jacques MOLNE	NF	no factor TF: 71-72
2017-05-21	Jacques MOLNE	NF	no factor TF: 70-71
2017-03-22	Jacques MOLNE	NF	no factor TF: 69-70
2016-10-22	Jacques MOLNE	NF	no factor TF: 67-69
2016-03-17	Andrew B	NF	no factor TF: 66-67
2014-03-11	sasaki3	NF	no factor TF: 65-66
2011-02-13	Architects Cubed	NF	no factor TF: 64-65