112 217 531 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 =	512000
B2 =	19316000

Status	Date	User	Residue	Shift	Type	Base
Verified	2023-02-23	Ruslan Borisov	95CA19BE05E24AEF	92160919	1	3

History

Date	User	Type	Result
2023-02-23	Remi Lucet	CERT	PRP Certification CERT proof power = 10 Proof certified good
2023-02-23	Ruslan Borisov	C-PRP	95CA19BE05E24AEF PRP proof power = 10 PRP: Verified Proof certified good
2022-04-21	Ryan Propper	NF-PM1	B1=512000, B2=19316000
2021-01-06	arpcar	NF	no factor from 2^76 to 2^77
2020-12-04	arpcar	NF	no factor from 2^75 to 2^76
2020-11-23	TheGazMan	NF	no factor from 2^74 to 2^75
2020-07-17	RNutter	NF	no factor from 2^73 to 2^74
2020-04-20	SRBase	NF	no factor from 2^72 to 2^73
2015-11-21	Judge Hale	NF	no factor from 2^71 to 2^72
2015-11-21	Judge Hale	NF	no factor from 2^70 to 2^71
2015-09-21	Judge Hale	NF	no factor from 2^69 to 2^70
2015-09-20	Bronzeman	NF	no factor from 2^68 to 2^69
2014-11-15	RichD0	NF	no factor from 2^67 to 2^68
2014-11-10	Judge Hale	NF	no factor from 2^66 to 2^67
2012-05-31	omiXorp	NF	no factor from 2^65 to 2^66
2010-09-25	linded	NF	no factor from 2^64 to 2^65
2010-05-04	sasaki3	NF	no factor from 2^63 to 2^64