332 211 203 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 2⁸¹

TF target 2⁸¹

Factored

Factor	Digits	Bits	Date
1247441398534901564557391	25	80.0	2023-01-15 09:50:03

History

Date	User	Type	Result
2025-06-23	Greg	F	Factor: 1247441398534901564557391 / TF: 80-81
2024-07-16	Grant McCracken	NF	no factor TF: 71-72
2024-03-28	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-01-15	Mark Rose	F	Factor: 1247441398534901564557391 / TF: 80-81*
2023-01-15	Mark Rose	NF	no factor TF: 79-80
2015-06-22	aurashift	NF-PM1	B1=3000000, B2=79500000, E=12
2013-07-18	Bill Staffen	NF	no factor TF: 78-79
2013-07-17	Bill Staffen	NF	no factor TF: 77-78
2010-05-05	SOULESS13	NF	no factor TF: 76-77
2010-04-18	SOULESS13	NF	no factor TF: 75-76
2009-08-08	djc4	NF	no factor TF: 74-75
2009-08-03	djc4	NF	no factor TF: 73-74
2009-04-22	mschanna19	NF	no factor TF: 72-73
2009-04-19	mschanna19	NF	no factor TF: 71-72
2009-04-17	mschanna19	NF	no factor TF: 70-71
2009-04-17	mschanna19	NF	no factor TF: 69-70
2008-11-21	SViste	NF	no factor TF: 68-69