85 106 239 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 PRP test

TF

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	710000
B2 =	13312500

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-05-15	ky0uraku	613B77B2901F529A	44017800	1	3
Verified	2021-12-23	ATH	613B77B2901F529A	0	1	3

History

Date	User	Type	Result
2021-12-23	ATH	C-PRP	613B77B2901F529A PRP: Verified PRP without proof (not generated)
2019-05-15	ky0uraku	C-PRP	613B77B2901F529A PRP: Verified PRP without proof (not generated)
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
2017-12-22	La Güira	NF-PM1	B1=710000, B2=13312500
2017-08-06	TheJudger	NF	no factor from 2^75 to 2^76
2017-08-06	TheJudger	NF	no factor from 2^74 to 2^75
2017-03-02	-Anonymous-	NF	no factor from 2^73 to 2^74
2017-03-02	-Anonymous-	NF	no factor from 2^72 to 2^73
2017-03-02	-Anonymous-	NF	no factor from 2^71 to 2^72
2014-08-15	Ryan Propper	NF	no factor from 2^70 to 2^71
2014-04-22	DasDaniel	NF	no factor from 2^69 to 2^70
2014-04-18	DasDaniel	NF	no factor from 2^68 to 2^69
2014-04-14	Preben S	NF	no factor from 2^67 to 2^68
2014-04-12	Preben S	NF	no factor from 2^66 to 2^67
2013-04-29	c10ck3r	NF	no factor from 2^65 to 2^66
2010-11-24	Architects Cubed	NF	no factor from 2^64 to 2^65