80 784 643 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

TF

No factors below 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	680000
B2 =	13600000

Status	Date	User	Residue	Shift
Unverified	2018-04-05	Evgeniy Zavialov	289A520D21E65B__	40406594

History

Date	User	Type	Result
2018-04-05	Evgeniy Zavialov	C-LL	289A520D21E65B__
2017-02-26	bam	NF-PM1	B1=680000, B2=13600000
2016-09-08	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-09-08	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-09-08	-Anonymous-	NF	no factor from 2^72 to 2^73
2016-09-08	-Anonymous-	NF	no factor from 2^71 to 2^72
2014-02-28	SMoffat	NF	no factor from 2^70 to 2^71
2014-02-03	Bronzeman	NF	no factor from 2^69 to 2^70
2013-02-05	arnaud	NF	no factor from 2^68 to 2^69
2013-02-04	arnaud	NF	no factor from 2^67 to 2^68
2013-01-25	HBendtz	NF	no factor from 2^66 to 2^67
2011-08-08	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-11	Architects Cubed	NF	no factor from 2^64 to 2^65