59 293 217 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 both PRP and Lucas-Lehmer tests

TF

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	555000
B2 =	10961250

Status	Date	User	Residue	Shift
Verified	2013-01-13	Amazon EC2	C0BC1373E4768F5B	56318139
Verified	2024-11-26	Jason Lynch	C0BC1373E4768F5B	1285594

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-04-20	Richard Thomas	C057AE2FE722286E	39144961	1	3

History

Date	User	Type	Result
2024-11-26	Jason Lynch	C-LL	C0BC1373E4768F5B
2021-04-20	curtisc	CERT	PRP Certification CERT proof power = 9 Proof certified good
2021-04-20	Richard Thomas	C-PRP	C057AE2FE722286E PRP proof power = 9 PRP: Verified Proof certified good
2018-12-31	-Anonymous-	NF	no factor from 2^73 to 2^74
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^63
2013-01-13	Amazon EC2	C-LL	C0BC1373E4768F5B
2012-12-03	Nesowa	NF-PM1	B1=555000, B2=10961250
2012-09-16	Craig Meyers	NF	no factor from 2^71 to 2^73
2011-10-15	bcp19	NF	no factor from 2^70 to 2^71
2011-07-13	megavink	NF	no factor from 2^69 to 2^70
2009-06-11	unconnected	NF	no factor from 2^68 to 2^69
2008-11-22	S36049	NF	no factor from 2^67 to 2^68
2008-11-20	S36049	NF	no factor from 2^66 to 2^67
2008-11-18	S36049	NF	no factor from 2^65 to 2^66
2008-11-17	ANONYMOUS	NF	no factor from 2^64 to 2^65
2008-07-05	monst	NF	no factor from 2^63 to 2^64