89 219 569 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 PRP test says not-prime

TF

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	720000
B2 =	14220000

Status	Date	User	Residue	Shift	Type	Base
Unverified	2019-02-20	William Wallace	B623D8BF99FB90__	66161677	1	3

History

Date	User	Type	Result
2019-02-20	William Wallace	C-PRP	B623D8BF99FB90__ PRP without proof (not generated)
2018-11-02	monst	NF-PM1	B1=720000, B2=14220000, E=6
2018-09-30	TheJudger	NF	no factor from 2^75 to 2^76
2018-09-30	TheJudger	NF	no factor from 2^74 to 2^75
2017-08-25	Tim Sorbera	NF	no factor from 2^73 to 2^74
2017-08-20	Matthias Wurtinger	NF	no factor from 2^72 to 2^73
2014-01-28	-Anonymous-	NF	no factor from 2^71 to 2^72
2013-09-22	SMoffat	NF	no factor from 2^70 to 2^71
2013-03-24	SMoffat	NF	no factor from 2^69 to 2^70
2013-03-24	SMoffat	NF	no factor from 2^68 to 2^69
2013-03-23	SMoffat	NF	no factor from 2^67 to 2^68
2013-03-21	SMoffat	NF	no factor from 2^66 to 2^67
2013-03-19	-Anonymous-	NF	no factor from 2^65 to 2^66
2010-11-08	Architects Cubed	NF	no factor from 2^64 to 2^65