60 160 447 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 2⁷¹

TF target 2⁷³

Factored

Factor	Digits	Bits	Date
2599255729428590429303	22	71.1	2012-11-22 16:10:29

History

Date	User	Type	Result
2016-08-13	Matthew Millar	NF	no factor TF: 62-63
2016-08-13	Matthew Millar	NF	no factor TF: 61-62
2016-08-13	Matthew Millar	NF	no factor TF: 60-61
2012-11-22	SWL551	F	Factor: 2599255729428590429303
2012-06-27	Serge Batalov	NF	no factor TF: 70-71
2011-07-25	-anonymous-	NF	no factor TF: 69-70
2009-06-25	-anonymous-	NF	no factor TF: 68-69
2009-01-26	James Hintz	NF	no factor TF: 67-68
2009-01-20	miguel_chek	NF	no factor TF: 66-67
2009-01-19	miguel_chek	NF	no factor TF: 65-66
2009-01-19	-anonymous-	NF	no factor TF: 64-65
2008-11-26	Sturle Sunde	NF	no factor TF: 63-64
2003-07-13	Gordon Spence	NF	no factor TF: 1-60