71 538 107 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	660000
B2 =	14025000

Status	Date	User	Residue	Shift
Unverified	2015-12-08	frolyar	C04FB55BB732D7__	21973708

History

Date	User	Type	Result
2015-12-08	frolyar	C-LL	C04FB55BB732D7__
2015-04-19	Xyzzy	NF	no factor from 2^74 to 2^75
2015-03-08	TheJudger	NF-PM1	B1=660000, B2=14025000, E=12
2015-02-25	chalsall	NF	no factor from 2^73 to 2^74
2015-02-13	Bdot	NF	no factor from 2^72 to 2^73
2014-12-29	RichD0	NF	no factor from 2^71 to 2^72
2014-05-04	HBendtz	NF	no factor from 2^70 to 2^71
2012-05-14	-Anonymous-	NF	no factor from 2^69 to 2^70
2010-05-16	w00dy	NF	no factor from 2^68 to 2^69
2010-05-13	arnaud	NF	no factor from 2^67 to 2^68
2010-05-08	arnaud	NF	no factor from 2^66 to 2^67
2010-05-02	Funkflaschen	NF	no factor from 2^65 to 2^66
2010-04-24	Funkflaschen	NF	no factor from 2^64 to 2^65
2008-10-19	Wojciech Florek	NF	no factor to 2^64