80 447 051 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 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	675000
B2 =	13500000

Status	Date	User	Residue	Shift	Type	Base
Verified	2018-06-18	ky0uraku	75DB6CCA0A989BFD	26201468	1	3
Verified	2020-06-21	ATH	75DB6CCA0A989BFD	0	1	3

History

Date	User	Type	Result
2020-06-21	ATH	C-PRP	75DB6CCA0A989BFD PRP: Verified PRP without proof (not generated)
2018-06-18	ky0uraku	C-PRP	75DB6CCA0A989BFD PRP: Verified PRP without proof (not generated)
2017-01-09	bam	NF-PM1	B1=675000, B2=13500000, E=6
2016-11-09	TheJudger	NF	no factor from 2^74 to 2^75
2016-10-13	Judge Hale	NF	no factor from 2^73 to 2^74
2016-05-07	Judge Hale	NF	no factor from 2^72 to 2^73
2016-05-07	Judge Hale	NF	no factor from 2^71 to 2^72
2013-10-31	SMoffat	NF	no factor from 2^70 to 2^71
2013-01-31	rjbelans	NF	no factor from 2^69 to 2^70
2013-01-27	rjbelans	NF	no factor from 2^68 to 2^69
2013-01-26	phoenicis	NF	no factor from 2^67 to 2^68
2011-03-27	Jaeckel	NF	no factor from 2^66 to 2^67
2011-03-23	GrunwalderGIMP	NF	no factor from 2^65 to 2^66
2010-12-09	Architects Cubed	NF	no factor from 2^64 to 2^65