60 219 487 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 2⁷³

TF target 2⁷³

Factored

Factor	Digits	Bits	Date
19456979975526850063	20	64.1	2013-01-08 06:43:28

P-1 factors

Date	Factors	B1	B2
2013-01-08	19456979975526850063	570000	0

History

Date	User	Type	Result
2022-03-29	LordJulius	NF	no factor TF: 60-63
2013-01-08	-anonymous-	F	Factor: 19456979975526850063
2012-12-11	delta_t	NF	no factor TF: 71-73
2012-08-22	SWL551	NF	no factor TF: 70-71
2011-07-27	firejuggler	NF	no factor TF: 69-70
2009-06-29	Richard Cameron	NF	no factor TF: 68-69
2009-01-22	-anonymous-	NF	no factor TF: 67-68
2009-01-20	-anonymous-	NF	no factor TF: 66-67
2009-01-19	-anonymous-	NF	no factor TF: 65-66
2009-01-19	Jon Strayer	NF	no factor TF: 64-65
2009-01-19	Sturle Sunde	NF	no factor TF: 63-64
2003-07-21	Gordon Spence	NF	no factor TF: 1-60