71 434 421 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 =	13860000

Status	Date	User	Residue	Shift
Unverified	2017-03-23	basey	D811B1B3E1FE1C__	10162007

History

Date	User	Type	Result
2017-03-23	basey	C-LL	D811B1B3E1FE1C__
2016-07-16	Jim Schwartz	NF	no factor from 2^74 to 2^75
2015-03-01	TheJudger	NF-PM1	B1=660000, B2=13860000, E=12
2015-02-22	Xyzzy	NF	no factor from 2^73 to 2^74
2015-01-16	Bdot	NF	no factor from 2^72 to 2^73
2014-12-18	RichD0	NF	no factor from 2^71 to 2^72
2013-11-30	SMoffat	NF	no factor from 2^70 to 2^71
2012-11-13	SMoffat	NF	no factor from 2^69 to 2^70
2010-04-26	sannerud.com	NF	no factor from 2^68 to 2^69
2010-04-25	korva	NF	no factor from 2^67 to 2^68
2010-04-21	Allan Manangan	NF	no factor from 2^66 to 2^67
2010-04-19	-Anonymous-	NF	no factor from 2^65 to 2^66
2010-03-22	-Anonymous-	NF	no factor from 2^64 to 2^65
2008-09-29	-Anonymous-	NF	no factor to 2^64