332 295 071 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 2⁸⁰

TF target 2⁸¹

Factored

Factor	Digits	Bits	Date
661062524578357879619777	24	79.1	2023-01-09 15:50:03

History

Date	User	Type	Result
2025-04-21	DMiddendorp	F	Factor: 661062524578357879619777 / TF: 79-80
2024-07-15	Grant McCracken	NF	no factor TF: 71-72
2024-04-16	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-01-09	Mark Rose	F	Factor: 661062524578357879619777 / TF: 79-80*
2020-08-27	el grocco	NF	no factor TF: 78-79
2020-08-04	el grocco	NF	no factor TF: 77-78
2019-12-12	MadPoo 🙂	NF-PM1	B1=100000, B2=1000000
2019-04-28	MadPoo 🙂	NF-PM1	B1=100000
2019-02-20	srow7	NF	no factor TF: 76-77
2015-07-31	Team_Inspector	NF	no factor TF: 75-76
2014-11-22	Team_Inspector	NF	no factor TF: 74-75
2014-09-24	Team_Inspector	NF	no factor TF: 73-74
2013-01-13	LaurV	NF	no factor TF: 72-73
2011-05-05	Grant McCracken	NF	no factor TF: 71-72
2011-04-05	Grant McCracken	NF	no factor TF: 70-71
2009-12-23	vats09	NF	no factor TF: 69-70
2009-07-14	Sunfish	NF	no factor TF: 68-69