85 311 469 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	685000
B2 =	13357500

Status	Date	User	Residue	Shift
Verified	2018-11-07	HighMans	1EE42C3373D6517B	82026753
Verified	2024-11-27	ohne-makler	1EE42C3373D6517B	76122848

History

Date	User	Type	Result
2024-11-27	ohne-makler	C-LL	1EE42C3373D6517B
2018-11-07	HighMans	C-LL	1EE42C3373D6517B
2018-02-04	TheJudger	NF-PM1	B1=685000, B2=13357500, E=12
2017-09-11	-Anonymous-	NF	no factor from 2^75 to 2^76
2017-09-11	-Anonymous-	NF	no factor from 2^74 to 2^75
2017-04-21	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-03-02	Strolling Jellyfish	NF	no factor from 2^72 to 2^73
2014-02-25	nate.anders	NF	no factor from 2^71 to 2^72
2014-02-25	nate.anders	NF	no factor from 2^70 to 2^71
2014-02-23	nate.anders	NF	no factor from 2^69 to 2^70
2014-02-23	nate.anders	NF	no factor from 2^68 to 2^69
2013-02-28	RonnyKarl	NF	no factor from 2^67 to 2^68
2013-02-23	andrea.biancalana	NF	no factor from 2^66 to 2^67
2013-02-17	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