70 853 327 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 =	645000
B2 =	13061250

Status	Date	User	Residue	Shift
Unverified	2016-09-15	volovik	6AC9DAA0B9ACC5__	56251963

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-10	Luke Durant	295DBD0EBE3E956B	0	1	3

History

Date	User	Type	Result
2024-11-10	David A. McGough	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-11-10	Luke Durant	C-PRP	295DBD0EBE3E956B PRP proof power = 9 PRP: Verified Proof certified good
2016-09-15	volovik	C-LL	6AC9DAA0B9ACC5__
2016-05-25	-Anonymous-	NF	no factor from 2^74 to 2^75
2015-02-09	David Campeau	NF-PM1	B1=645000, B2=13061250
2014-04-25	Craig Meyers	NF	no factor from 2^70 to 2^74
2011-02-19	ANONYMOUS	NF	no factor to 2^70
2010-05-10	GrunwalderGIMP	NF	no factor from 2^67 to 2^68
2010-05-09	GrunwalderGIMP	NF	no factor from 2^66 to 2^67
2010-05-08	GrunwalderGIMP	NF	no factor from 2^65 to 2^66
2010-05-04	Martin Prusa	NF	no factor from 2^64 to 2^65
2008-11-20	Wojciech Florek	NF	no factor to 2^64