72 598 433 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 =	625000
B2 =	12343750

Status	Date	User	Residue	Shift	Software
Verified	2015-11-07	Kyle Z Schmidt	E85FFA83019C3C87	63644119	Windows 64-bit,Prime95,v28.5,build 2
Verified	2024-10-09	J. Roque Dias	E85FFA83019C3C87	63481029	Windows 64-bit,Prime95,v27.9,build 1

History

Date	User	Type	Result
2024-10-09	J. Roque Dias	C-LL	E85FFA83019C3C87
2015-11-07	Kyle Z Schmidt	C-LL	E85FFA83019C3C87
2015-08-23	TheJudger	NF-PM1	B1=625000, B2=12343750, E=12
2015-08-20	A_Savchenko	NF	no factor TF: 74-75
2015-08-20	A_Savchenko	NF	no factor TF: 73-74
2015-08-05	Matthias Wurtinger	NF	no factor TF: 72-73
2015-03-06	srow7	NF	no factor TF: 71-72
2013-04-30	hogtrader	NF	no factor TF: 70-71
2012-09-30	Cow_tipping	NF	no factor TF: 69-70
2010-06-05	Halász Atilla	NF	no factor TF: 68-69
2010-06-04	GrunwalderGIMP	NF	no factor TF: 67-68
2010-06-03	shbris	NF	no factor TF: 66-67
2010-06-02	-anonymous-	NF	no factor TF: 65-66
2010-05-27	Rael	NF	no factor TF: 64-65
2008-09-19	Wojciech Florek	NF	no factor TF: 1-64
2002-05-25	Joss	NF	no factor TF: 1-57