338 631 479 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
72205095515974048598543	23	75.9	2025-01-18 23:12:45

History

Date	User	Type	Result
2025-01-18	Ruslan Borisov	F	Factor: 72205095515974048598543 / TF: 75-76
2023-08-30	JacobZ	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
2016-08-04	Jacques MOLNE	NF	no factor TF: 71-72
2016-08-04	Jacques MOLNE	NF	no factor TF: 70-71
2016-08-04	Jacques MOLNE	NF	no factor TF: 69-70
2015-07-24	Jacques MOLNE	NF	no factor TF: 67-69
2014-02-12	HBendtz	NF	no factor TF: 65-67
2010-04-28	Architects Cubed	NF	no factor TF: 64-65