120 257 351 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 2⁷⁷

P-1

B1 =	767000
B2 =	124630800

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-04-25	ky0uraku	47C70270DEA1FBCB	44246606	1	3

History

Date	User	Type	Result
2024-04-25	Chuck	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-04-25	ky0uraku	C-PRP	47C70270DEA1FBCB PRP proof power = 9 PRP: Verified Proof certified good
2023-11-18	Extremofire	NF-PM1	B1=767000, B2=124630800
2022-06-13	TheJudger	NF	no factor from 2^76 to 2^77
2021-07-11	TheJudger	NF	no factor from 2^75 to 2^76
2021-07-11	TheJudger	NF	no factor from 2^74 to 2^75
2021-06-08	Porkey	NF	no factor from 2^73 to 2^74
2020-10-20	SRBase	NF	no factor from 2^72 to 2^73
2015-05-11	Earle Lowe	NF	no factor from 2^71 to 2^72
2015-05-07	Earle Lowe	NF	no factor from 2^70 to 2^71
2015-05-03	SMoffat	NF	no factor from 2^69 to 2^70
2015-04-19	SMoffat	NF	no factor from 2^68 to 2^69
2015-01-11	caddr	NF	no factor from 2^67 to 2^68
2013-10-10	E.Lechner	NF	no factor from 2^66 to 2^67
2012-08-03	tsc	NF	no factor from 2^65 to 2^66
2010-10-18	Ali	NF	no factor from 2^64 to 2^65
2010-05-18	Florian	NF	no factor from 2^63 to 2^64