121 071 311 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 =	508000
B2 =	13139000

Status		Date	User	Residue	Shift	Type	Base
composite	Unverified (Reliable)	2024-03-13	mkras	9FC4510BC722A1__	71086218	1	3

History

Date	User	Type	Result
2024-03-13	mkras	C-PRP	9FC4510BC722A1__ PRP proof power = 8 PRP: Unverified (Reliable) PRP proof never uploaded
2023-12-25	mkras	NF-PM1	B1=508000, B2=13139000
2022-06-22	TheJudger	NF	no factor from 2^76 to 2^77
2021-07-31	Kevin Jaget	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
2020-10-19	SRBase	NF	no factor from 2^72 to 2^73
2015-06-05	-Anonymous-	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
2012-08-16	Richard	NF	no factor from 2^65 to 2^66
2010-10-20	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-05-17	Torchwood Institute	NF	no factor from 2^63 to 2^64