108 287 203 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 2⁷⁶

P-1

B1 =	780000
B2 =	23469000

Status	Date	User	Residue	Shift	Type	Base
Verified	2022-01-13	ky0uraku	D8FA23BD5B9F939E	101310770	1	3

History

Date	User	Type	Result
2022-01-13	entropydave	CERT	PRP Certification CERT proof power = 9 Proof certified good
2022-01-13	ky0uraku	C-PRP	D8FA23BD5B9F939E PRP proof power = 9 PRP: Verified Proof certified good
2022-01-02	ky0uraku	NF-PM1	B1=780000, B2=23469000
2021-04-18	TheJudger	NF	no factor from 2^75 to 2^76
2021-04-18	TheJudger	NF	no factor from 2^74 to 2^75
2019-11-08	Niels_Mache_Nextcloud	NF	no factor from 2^73 to 2^74
2019-11-08	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2015-02-02	SMoffat	NF	no factor from 2^71 to 2^72
2013-10-01	processinfo	NF	no factor from 2^70 to 2^71
2013-10-01	processinfo	NF	no factor from 2^69 to 2^70
2013-10-01	processinfo	NF	no factor from 2^68 to 2^69
2013-10-01	processinfo	NF	no factor from 2^66 to 2^68
2012-05-23	omiXorp	NF	no factor from 2^65 to 2^66
2010-09-10	josibo	NF	no factor from 2^64 to 2^65
2010-04-26	sasaki3	NF	no factor from 2^63 to 2^64