74 733 053 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 =	655000
B2 =	13100000

Status	Date	User	Residue	Shift
Unverified	2016-12-31	Evgeniy Zavialov	6548893BFC2F51__	63110649

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-19	Luke Durant	134D4D577AFDD218	0	1	3

History

Date	User	Type	Result
2024-11-19	BA24Cx	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-11-19	Luke Durant	C-PRP	134D4D577AFDD218 PRP proof power = 9 PRP: Verified Proof certified good
2016-12-31	Evgeniy Zavialov	C-LL	6548893BFC2F51__
2016-04-02	Mark Rose	NF	no factor from 2^57 to 2^64
2015-12-13	TheJudger	NF-PM1	B1=655000, B2=13100000, E=12
2015-11-22	TheJudger	NF	no factor from 2^74 to 2^75
2015-11-22	TheJudger	NF	no factor from 2^73 to 2^74
2015-11-22	TheJudger	NF	no factor from 2^72 to 2^73
2011-10-07	rduerr	NF	no factor from 2^67 to 2^72
2011-05-03	Carsten Kossendey	NF	no factor from 2^66 to 2^67
2010-07-14	unconnected	NF	no factor from 2^65 to 2^66
2010-07-11	Xorsist	NF	no factor from 2^64 to 2^65