115 821 743 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 =	971000
B2 =	285167190

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-01-08	Ruslan Borisov	3EBEBCE199CFA2CF	27556928	1	3

History

Date	User	Type	Result
2024-01-10	ANONYMOUS	CERT	PRP Certification CERT proof power = 10 Proof certified good
2024-01-08	Ruslan Borisov	C-PRP	3EBEBCE199CFA2CF PRP proof power = 10 PRP: Verified Proof certified good
2023-01-24	James Heinrich	NF-PM1	B1=971000, B2=285167190
2022-05-26	A Cuneo	NF	no factor from 2^76 to 2^77
2022-01-10	-Anonymous-	NF-PM1	B1=801000
2021-06-06	TheJudger	NF	no factor from 2^75 to 2^76
2020-11-02	hkt	NF	no factor from 2^74 to 2^75
2020-10-11	TheGazMan	NF	no factor from 2^73 to 2^74
2015-09-27	ANONYMOUS	NF	no factor from 2^72 to 2^73
2015-09-27	ANONYMOUS	NF	no factor from 2^71 to 2^72
2015-09-27	ANONYMOUS	NF	no factor from 2^70 to 2^71
2015-03-26	SMoffat	NF	no factor from 2^69 to 2^70
2015-03-15	SMoffat	NF	no factor from 2^68 to 2^69
2015-03-11	bunddog	NF	no factor from 2^67 to 2^68
2014-11-30	tsc	NF	no factor from 2^66 to 2^67
2012-06-23	vapaddy	NF	no factor from 2^65 to 2^66
2010-10-07	Ali	NF	no factor from 2^64 to 2^65
2010-05-09	Torchwood Institute	NF	no factor from 2^63 to 2^64