115 660 021 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 2⁷⁷

TF target 2⁷⁶

P-1

B1 =	511000
B2 =	13211000

Status	Date	User	Residue	Shift	Type	Base
Verified	2023-05-08	ANONYMOUS	115F26B3B62B6E66	108133451	1	3

History

Date	User	Type	Result
2023-05-08	curtisc	CERT	PRP Certification CERT proof power = 8 Proof certified good
2023-05-08	ANONYMOUS	C-PRP	115F26B3B62B6E66 PRP proof power = 8 PRP: Verified Proof certified good
2022-05-31	tottenhoff	NF-PM1	B1=511000, B2=13211000, E=4
2022-04-18	TheJudger	NF	no factor from 2^76 to 2^77
2021-06-05	TheJudger	NF	no factor from 2^75 to 2^76
2021-06-05	TheJudger	NF	no factor from 2^74 to 2^75
2020-11-27	Architects Cubed	NF	no factor from 2^73 to 2^74
2020-04-25	SRBase	NF	no factor from 2^72 to 2^73
2015-05-04	SRS Technology	NF	no factor from 2^71 to 2^72
2015-05-04	SRS Technology	NF	no factor from 2^70 to 2^71
2015-05-04	SRS Technology	NF	no factor from 2^69 to 2^70
2015-05-04	SRS Technology	NF	no factor from 2^68 to 2^69
2015-03-01	SMoffat	NF	no factor from 2^67 to 2^68
2014-11-28	vwflat4	NF	no factor from 2^66 to 2^67
2012-06-21	subgenius	NF	no factor from 2^65 to 2^66
2010-10-06	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-05-08	Torchwood Institute	NF	no factor from 2^63 to 2^64