52 780 037 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
533917432484655670393	21	68.9	2015-01-22 16:06:02

Status	Date	User	Residue	Shift
Verified (Factored)	2011-12-04	Flash	92288574C75D5E4F	48504391

History

Date	User	Type	Result
2015-01-22	Mark Rose	F	Factor: 533917432484655670393 / TF: 68-69*
2014-10-22	Nesowa	NF	no factor from 2^69 to 2^70
2011-12-04	Flash	C-LL	92288574C75D5E4F
2011-06-04	Flash	NF-PM1	B1=610000, B2=14792500
2010-03-28	sannerud.com	NF	no factor from 2^68 to 2^69
2009-04-26	jfarek	NF	no factor from 2^67 to 2^68
2009-02-28	Nemo_bis	NF	no factor from 2^66 to 2^67
2009-02-21	Pierre Abbat	NF	no factor from 2^65 to 2^66
2009-02-12	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-11-13	Derek	NF	no factor to 2^64