74 355 653 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	740000
B2 =	16650000

Status	Date	User	Residue	Shift
Unverified	2017-03-06	Ron LeShane	DB3F8B802395FE__	19631542

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-26	Luke Durant	B39CBB1D9EA69300	0	1	3

History

Date	User	Type	Result
2024-11-26	LOBES	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-11-26	Luke Durant	C-PRP	B39CBB1D9EA69300 PRP proof power = 9 PRP: Verified Proof certified good
2017-03-06	Ron LeShane	C-LL	DB3F8B802395FE__
2016-07-08	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-03-26	Judge Hale	NF	no factor from 2^73 to 2^74
2015-07-26	TheJudger	NF-PM1	B1=740000, B2=16650000, E=12
2015-07-19	Bdot	NF	no factor from 2^72 to 2^73
2010-07-23	ahmerali	NF	no factor to 2^72
2008-09-16	lycorn	NF	no factor to 2^64