73 972 207 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 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	381000
B2 =	81107250

Status	Date	User	Residue	Shift
Unverified	2017-02-07	Shnobel	FB0B83FEF76B58__	71718545

History

Date	User	Type	Result
2022-10-10	Ahmed Azhad	NF-PM1	B1=381000, B2=81107250
2017-02-07	Shnobel	C-LL	FB0B83FEF76B58__
2016-06-17	Brian Beuning	NF	no factor from 2^74 to 2^75
2016-04-02	Mark Rose	NF	no factor from 2^57 to 2^64
2014-09-16	-Anonymous-	NF-PM1	B1=825000
2014-09-14	Gordon Spence	NF	no factor from 2^73 to 2^74
2012-05-31	Roman Maznichenko	NF	no factor from 2^72 to 2^73
2012-05-31	Roman Maznichenko	NF	no factor from 2^71 to 2^72
2012-05-31	Roman Maznichenko	NF	no factor from 2^70 to 2^71
2012-05-31	Roman Maznichenko	NF	no factor from 2^69 to 2^70
2010-09-05	DRH	NF	no factor from 2^68 to 2^69
2010-09-01	Nurpuri	NF	no factor from 2^67 to 2^68
2010-08-26	Nurpuri	NF	no factor from 2^66 to 2^67
2010-08-22	Nurpuri	NF	no factor from 2^65 to 2^66
2010-06-15	Eidan Spiegel	NF	no factor from 2^64 to 2^65