166 000 433 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 2⁷⁹

TF target 2⁷⁸

P-1

B1 =	2414000
B2 =	258357990

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-11-27	Dale	515960E6E3834A86	93059739	1	3

History

Date	User	Type	Result
2024-11-27	Henning Gerhardt	CERT	PRP Certification CERT proof power = 8 Proof certified good
2024-11-27	Dale	C-PRP	515960E6E3834A86 PRP proof power = 8 PRP: Verified Proof certified good
2024-07-11	Tucker Kao	NF	no factor from 2^78 to 2^79
2024-07-11	Tucker Kao	NF	no factor from 2^77 to 2^78
2024-07-11	Tucker Kao	NF	no factor from 2^76 to 2^77
2024-07-11	Tucker Kao	NF	no factor from 2^75 to 2^76
2023-07-19	timbit	NF-PM1	B1=2414000, B2=258357990
2023-03-12	SRBase	NF	no factor from 2^74 to 2^75
2021-12-10	SRBase	NF	no factor from 2^73 to 2^74
2018-02-01	Zenghui	NF	no factor from 2^72 to 2^73
2018-01-29	nate.anders	NF	no factor from 2^71 to 2^72
2018-01-21	xx005fs	NF	no factor from 2^70 to 2^71
2014-12-11	La Güira	NF	no factor from 2^69 to 2^70
2014-12-11	La Güira	NF	no factor from 2^68 to 2^69
2014-12-11	La Güira	NF	no factor from 2^66 to 2^68
2013-03-15	sasaki3	NF	no factor from 2^65 to 2^66
2011-02-11	sasaki3	NF	no factor from 2^64 to 2^65