84 817 853 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 =	680000
B2 =	13430000

Status	Date	User	Residue	Shift	Type	Base
Verified	2019-04-26	ky0uraku	80BCD4A85C74C642	28933677	1	3
Verified	2021-03-13	ATH	80BCD4A85C74C642	0	1	3

History

Date	User	Type	Result
2021-03-13	ATH	C-PRP	80BCD4A85C74C642 PRP: Verified PRP without proof (not generated)
2019-04-27	ATH	NF	no factor from 2^63 to 2^64
2019-04-27	ATH	NF	no factor from 2^1 to 2^63
2019-04-26	ky0uraku	C-PRP	80BCD4A85C74C642 PRP: Verified PRP without proof (not generated)
2017-12-31	TheJudger	NF-PM1	B1=680000, B2=13430000, E=12
2017-06-11	TheJudger	NF	no factor from 2^75 to 2^76
2017-06-11	TheJudger	NF	no factor from 2^74 to 2^75
2017-05-12	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-12-22	Judge Hale	NF	no factor from 2^72 to 2^73
2013-08-07	La Güira	NF	no factor from 2^71 to 2^72
2013-08-07	La Güira	NF	no factor from 2^70 to 2^71
2013-07-13	Le Comte	NF	no factor from 2^69 to 2^70
2013-07-13	Le Comte	NF	no factor from 2^68 to 2^69
2013-07-13	Le Comte	NF	no factor from 2^67 to 2^68
2013-07-13	Le Comte	NF	no factor from 2^66 to 2^67
2012-08-20	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-23	Architects Cubed	NF	no factor from 2^64 to 2^65