74 759 323 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	655000
B2 =	15180000

Status	Date	User	Residue	Shift
Unverified	2016-06-22	Klaus Fleischmann	DC89E883D44249__	68632800

Status	Date	User	Residue	Shift	Type	Base
Verified	2023-06-01	Kriesel	D49DD90184CB58B5	0	1	3

History

Date	User	Type	Result
2023-06-01	David Barley	CERT	PRP Certification CERT proof power = 10 Proof certified good
2023-06-01	Kriesel	C-PRP	D49DD90184CB58B5 PRP proof power = 10 PRP: Verified Proof certified good
2016-06-22	Klaus Fleischmann	C-LL	DC89E883D44249__
2016-04-02	Mark Rose	NF	no factor from 2^57 to 2^64
2016-01-17	Matthew Millar	NF-PM1	B1=655000, B2=15180000, e=2
2016-01-14	PDW	NF	no factor from 2^74 to 2^75
2016-01-14	PDW	NF	no factor from 2^73 to 2^74
2016-01-10	LingUaan	NF	no factor from 2^72 to 2^73
2015-08-24	Judge Hale	NF	no factor from 2^71 to 2^72
2013-08-28	willmore	NF	no factor from 2^70 to 2^71
2012-11-14	Clown_Royal	NF	no factor from 2^69 to 2^70
2010-07-29	arnaud	NF	no factor from 2^68 to 2^69
2010-07-22	jrwines	NF	no factor from 2^67 to 2^68
2010-07-18	Xorsist	NF	no factor from 2^66 to 2^67
2010-07-17	ANONYMOUS	NF	no factor from 2^65 to 2^66
2010-07-15	Matthias Schon	NF	no factor from 2^64 to 2^65