79 449 017 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 Lucas-Lehmer test

TF

No factors below 2⁷⁵

TF target 2⁷⁵

P-1

B1 =	670000
B2 =	13567500

Status	Date	User	Residue	Shift
Bad	2017-09-04	basey	12C5F5865A3985FF	15385436
Verified	2023-08-19	MadPoo	36F47D7E5F9CC449	38457393
Verified	2023-09-04	LaurV	36F47D7E5F9CC449	1909718

History

Date	User	Type	Result
2023-09-04	LaurV	C-LL	36F47D7E5F9CC449
2023-08-19	MadPoo	C-LL	36F47D7E5F9CC449
2017-09-04	basey	C-LL	12C5F5865A3985FF
2016-10-04	Nesowa	NF-PM1	B1=670000, B2=13567500, E=12
2016-09-26	Brian Beuning	NF	no factor from 2^74 to 2^75
2016-09-26	Brian Beuning	NF	no factor from 2^73 to 2^74
2016-09-20	RichD0	NF	no factor from 2^72 to 2^73
2014-01-30	SRS Technology	NF	no factor from 2^71 to 2^72
2013-01-21	Bold_Seeker	NF	no factor from 2^70 to 2^71
2011-02-09	greensinoz	NF	no factor from 2^69 to 2^70
2011-02-07	KarlMJ	NF	no factor from 2^68 to 2^69
2011-02-07	KarlMJ	NF	no factor from 2^67 to 2^68
2011-02-07	KarlMJ	NF	no factor from 2^66 to 2^67
2011-02-06	-Anonymous-	NF	no factor from 2^65 to 2^66
2011-02-01	ANONYMOUS	NF	no factor from 2^64 to 2^65
2009-05-29	Architects Cubed	NF	no factor from 2^63 to 2^64