121 071 823 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 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	1256000
B2 =	2100571200

Status	Date	User	Residue	Shift
Unverified	2023-12-18	Nipal	D76EC090A566F6__	60551949

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-01-06	WillowW	BAA7B4A95064A695	1251690	1	3

History

Date	User	Type	Result
2024-01-07	curtisc	CERT	PRP Certification CERT proof power = 10 Proof certified good
2024-01-06	WillowW	C-PRP	BAA7B4A95064A695 PRP proof power = 10 PRP: Verified Proof certified good
2023-12-23	Kriesel	NF-PM1	B1=1256000, B2=2100571200
2023-12-18	Nipal	C-LL	D76EC090A566F6__
2022-06-22	TheJudger	NF	no factor from 2^76 to 2^77
2021-07-30	1997rj7	NF	no factor from 2^75 to 2^76
2021-07-26	Tom	NF	no factor from 2^74 to 2^75
2021-07-05	SRBase	NF	no factor from 2^73 to 2^74
2020-10-20	SRBase	NF	no factor from 2^72 to 2^73
2015-06-14	Summy	NF	no factor from 2^71 to 2^72
2015-06-04	bunddog	NF	no factor from 2^70 to 2^71
2013-10-30	GrunwalderGIMP	NF	no factor from 2^69 to 2^70
2013-10-30	GrunwalderGIMP	NF	no factor from 2^68 to 2^69
2013-10-30	GrunwalderGIMP	NF	no factor from 2^66 to 2^68
2012-08-09	sasaki3	NF	no factor from 2^65 to 2^66
2010-10-22	Richard	NF	no factor from 2^64 to 2^65
2010-05-22	Richard	NF	no factor from 2^63 to 2^64