55 512 521 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁴

TF target 2⁷³

P-1

B1 =	560000
B2 =	12320000

Status	Date	User	Residue	Shift
Verified	2012-05-12	Vince	6DA2B2601ACFBFDD	14971517
Verified	2020-09-04	Smok_bmv	6DA2B2601ACFBFDD	54896883

History

Date	User	Type	Result
2020-09-04	Smok_bmv	C-LL	6DA2B2601ACFBFDD
2019-05-26	TheJudger	NF	no factor from 2^73 to 2^74
2016-02-05	-Anonymous-	NF	no factor from 2^72 to 2^73
2012-05-12	Vince	C-LL	6DA2B2601ACFBFDD
2012-04-11	Vince	NF-PM1	B1=560000, B2=12320000, E=6
2012-04-05	RichD0	NF	no factor from 2^70 to 2^72
2011-05-28	JMGarcia	NF	no factor from 2^69 to 2^70
2011-04-15	ANONYMOUS	NF	no factor from 2^68 to 2^69
2009-08-14	raymondf	NF	no factor from 2^67 to 2^68
2009-06-09	Jefff	NF	no factor from 2^66 to 2^67
2009-03-26	Jefff	NF	no factor from 2^65 to 2^66
2009-03-06	kswisz	NF	no factor from 2^64 to 2^65
2008-07-02	-Anonymous-	NF	no factor to 2^64