85 293 011 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	680000
B2 =	13260000

Status	Date	User	Residue	Shift
Unverified	2019-05-27	Zwen	8669CBBC266E4B__	59491771

History

Date	User	Type	Result
2024-06-11	James Heinrich	NF	no factor from 2^68 to 2^69
2019-05-27	Zwen	C-LL	8669CBBC266E4B__
2019-04-28	ATH	NF	no factor from 2^63 to 2^64
2019-04-28	ATH	NF	no factor from 2^1 to 2^63
2018-02-04	TheJudger	NF-PM1	B1=680000, B2=13260000, E=12
2017-09-05	-Anonymous-	NF	no factor from 2^75 to 2^76
2017-09-05	-Anonymous-	NF	no factor from 2^74 to 2^75
2017-04-19	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-03-01	Strolling Jellyfish	NF	no factor from 2^72 to 2^73
2015-12-20	Mark Rose	NF	no factor from 2^71 to 2^72
2014-02-14	Gordon Bower	NF	no factor from 2^70 to 2^71
2014-02-14	Gordon Bower	NF	no factor from 2^69 to 2^70
2014-02-14	Gordon Bower	NF	no factor from 2^71 to 2^72
2014-01-14	Carsten Kossendey	NF	no factor from 2^68 to 2^69
2013-10-17	ITS	NF	no factor from 2^67 to 2^68
2013-08-15	Robish	NF	no factor from 2^66 to 2^67
2013-02-16	E.Lechner	NF	no factor from 2^65 to 2^66
2010-11-25	Architects Cubed	NF	no factor from 2^64 to 2^65