111 181 657 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 2⁷⁶

TF target 2⁷⁶

P-1

B1 =	809000
B2 =	24032000

Status	Date	User	Residue	Shift	Type	Base
Verified	2022-04-03	Conductor	492D4016EB2E4E26	4823129	1	3

History

Date	User	Type	Result
2022-04-03	lozcs	CERT	PRP Certification CERT proof power = 8 Proof certified good
2022-04-03	Conductor	C-PRP	492D4016EB2E4E26 PRP proof power = 8 PRP: Verified Proof certified good
2022-02-22	Conductor	NF-PM1	B1=809000, B2=24032000
2020-12-21	arpcar	NF	no factor from 2^75 to 2^76
2020-11-25	arpcar	NF	no factor from 2^74 to 2^75
2020-07-21	tsc	NF	no factor from 2^73 to 2^74
2020-04-30	SRBase	NF	no factor from 2^72 to 2^73
2015-03-02	SRS Technology	NF	no factor from 2^71 to 2^72
2015-03-02	SRS Technology	NF	no factor from 2^70 to 2^71
2015-03-02	SRS Technology	NF	no factor from 2^69 to 2^70
2015-03-02	SRS Technology	NF	no factor from 2^68 to 2^69
2014-11-21	webbert	NF	no factor from 2^67 to 2^68
2014-11-10	Richard	NF	no factor from 2^66 to 2^67
2012-05-27	Torchwood Institute	NF	no factor from 2^65 to 2^66
2010-09-21	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-05-02	Martti Järvi	NF	no factor from 2^63 to 2^64