108 578 227 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 =	743000
B2 =	21481000

Status	Date	User	Residue	Shift	Type	Base
Verified	2022-01-23	ky0uraku	E04058D6A182050E	29728182	1	3

History

Date	User	Type	Result
2022-01-24	1997rj7	CERT	PRP Certification CERT proof power = 9 Proof certified good
2022-01-23	ky0uraku	C-PRP	E04058D6A182050E PRP proof power = 9 PRP: Verified Proof certified good
2022-01-15	ky0uraku	NF-PM1	B1=743000, B2=21481000
2022-01-06	1997rj7	NF	no factor from 2^76 to 2^77
2021-04-26	TheJudger	NF	no factor from 2^75 to 2^76
2021-04-26	TheJudger	NF	no factor from 2^74 to 2^75
2019-09-18	Niels_Mache_Nextcloud	NF	no factor from 2^73 to 2^74
2019-09-18	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2019-01-27	Niels_Mache_Nextcloud	NF	no factor from 2^71 to 2^72
2015-08-03	JaroslawD	NF	no factor from 2^70 to 2^71
2013-10-17	g0b	NF	no factor from 2^69 to 2^70
2013-10-09	g0b	NF	no factor from 2^68 to 2^69
2013-09-27	Adam Stinchcombe	NF	no factor from 2^67 to 2^68
2013-09-25	Adam Stinchcombe	NF	no factor from 2^66 to 2^67
2012-05-22	HBendtz	NF	no factor from 2^65 to 2^66
2010-09-12	Richard	NF	no factor from 2^64 to 2^65
2010-04-27	sasaki3	NF	no factor from 2^63 to 2^64