105 863 621 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 2⁷⁷

TF target 2⁷⁶

P-1

B1 =	835000
B2 =	16700000

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-10-10	ky0uraku	32BD69F54AB2D4DB	0	1	3

History

Date	User	Type	Result
2020-10-10	Bill Staffen	CERT	PRP Certification CERT proof power = 8 Proof certified good
2020-10-10	ky0uraku	C-PRP	32BD69F54AB2D4DB PRP proof power = 8 PRP: Verified Proof certified good
2020-08-19	-Anonymous-	NF-PM1	B1=835000, B2=16700000, E=6
2020-05-03	TheJudger	NF	no factor from 2^76 to 2^77
2020-05-03	TheJudger	NF	no factor from 2^75 to 2^76
2020-03-01	LaurV	NF	no factor from 2^74 to 2^75
2020-02-24	Hans Loeblich	NF	no factor from 2^73 to 2^74
2020-01-15	David Hruska	NF	no factor from 2^72 to 2^73
2015-01-28	Preben S	NF	no factor from 2^71 to 2^72
2014-10-24	SMoffat	NF	no factor from 2^70 to 2^71
2014-10-17	SMoffat	NF	no factor from 2^69 to 2^70
2013-09-09	CSLatDD	NF	no factor from 2^68 to 2^69
2013-09-06	Preben S	NF	no factor from 2^67 to 2^68
2013-09-05	Preben S	NF	no factor from 2^66 to 2^67
2012-05-13	tsc	NF	no factor from 2^65 to 2^66
2010-09-02	Derek	NF	no factor from 2^64 to 2^65
2010-04-21	Torchwood Institute	NF	no factor from 2^63 to 2^64