78 251 123 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	735000
B2 =	15618750

Status	Date	User	Residue	Shift
Unverified	2018-02-23	karjalanpiirakka	DF04CD2AE53ACA__	55299008

History

Date	User	Type	Result
2020-05-22	-Anonymous-	NF	no factor from 2^75 to 2^76
2018-02-23	karjalanpiirakka	C-LL	DF04CD2AE53ACA__
2016-01-18	AirSquirrels	NF	no factor from 2^74 to 2^75
2015-05-26	aurashift	NF-PM1	B1=735000, B2=15618750, E=12
2014-10-02	blip	NF	no factor from 2^73 to 2^74
2014-10-02	blip	NF	no factor from 2^72 to 2^73
2014-10-02	blip	NF	no factor from 2^71 to 2^72
2013-01-10	JimBa	NF	no factor from 2^70 to 2^71
2012-04-04	E.Lechner	NF	no factor from 2^69 to 2^70
2012-04-02	E.Lechner	NF	no factor from 2^68 to 2^69
2012-03-31	GrunwalderGIMP	NF	no factor from 2^67 to 2^68
2011-03-04	-Anonymous-	NF	no factor from 2^66 to 2^67
2010-10-25	fsweb	NF	no factor from 2^65 to 2^66
2010-10-23	-Anonymous-	NF	no factor from 2^64 to 2^65