81 348 979 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 2⁷⁵

P-1

B1 =	1398000
B2 =	595311990

Status	Date	User	Residue	Shift
Unverified	2018-09-11	EthanD	9E812F59652FDB__	71819914

Status	Date	User	Residue	Shift	Type	Base
Verified	2023-04-11	Jan S.	A83468DB8A433885	13573965	1	3

History

Date	User	Type	Result
2023-04-11	Remi Lucet	CERT	PRP Certification Proof certified good
2023-04-11	Jan S.	C-PRP	A83468DB8A433885 PRP: Verified Proof certified good
2023-03-26	Jan S.	NF-PM1	B1=1398000, B2=595311990
2018-09-11	EthanD	C-LL	9E812F59652FDB__
2017-06-19	GrunwalderGIMP	NF-PM1	B1=675000, B2=9281250
2016-11-04	-Anonymous-	NF	no factor from 2^74 to 2^75
2016-11-04	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-09-20	Judge Hale	NF	no factor from 2^72 to 2^73
2016-09-20	Judge Hale	NF	no factor from 2^71 to 2^72
2013-11-08	Robish	NF	no factor from 2^70 to 2^71
2013-11-08	-Anonymous-	NF	no factor from 2^70 to 2^71
2011-03-08	Robert Walker	NF	no factor from 2^69 to 2^70
2011-03-02	Robert Walker	NF	no factor from 2^68 to 2^69
2011-02-26	Robert Walker	NF	no factor from 2^67 to 2^68
2011-02-24	Robert Walker	NF	no factor from 2^66 to 2^67
2011-02-20	JuergenFitschen	NF	no factor from 2^65 to 2^66
2010-12-13	Architects Cubed	NF	no factor from 2^64 to 2^65