70 053 427 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	595000
B2 =	11453750

Status	Date	User	Residue	Shift	Software
Verified	2015-05-02	Kyle Z Schmidt	7F7DF5A9599B4E05	67315273	Windows 64-bit,Prime95,v28.5,build 2
Verified	2024-01-11	Ryan Propper	7F7DF5A9599B4E05	1520528	Linux 64-bit,Prime95,v30.7,build 9

History

Date	User	Type	Result
2024-01-11	Ryan Propper	C-LL	7F7DF5A9599B4E05
2015-05-02	Kyle Z Schmidt	C-LL	7F7DF5A9599B4E05
2015-01-26	Nesowa	NF-PM1	B1=595000, B2=11453750, E=6
2015-01-17	kdgehman	NF	no factor TF: 74-75
2015-01-17	kdgehman	NF	no factor TF: 73-74
2014-08-30	RichD0	NF	no factor TF: 72-73
2014-08-24	srow7	NF	no factor TF: 71-72
2014-04-07	HBendtz	NF	no factor TF: 70-71
2009-05-17	-anonymous-	NF	no factor TF: 1-70
2009-04-25	-anonymous-	NF	no factor TF: 1-70
2007-12-18	Amperio	NF	no factor TF: 1-64
2007-07-04	Amperio	NF	no factor TF: 1-63