48 899 131 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 2⁷³

TF target 2⁷³

P-1

B1 =	560000
B2 =	12040000

Status	Date	User	Residue	Shift
Verified	2011-11-23	Stephan Grupp	921CCB0E4DBF79CB	23845300
Verified	2017-12-02	Evgeniy Zavialov	921CCB0E4DBF79CB	32727599

History

Date	User	Type	Result
2017-12-02	Evgeniy Zavialov	C-LL	921CCB0E4DBF79CB
2017-09-09	-Anonymous-	NF	no factor from 2^72 to 2^73
2013-09-12	Architects Cubed	NF-PM1	B1=560000, B2=12040000, E=12
2013-09-09	Architects Cubed	NF	no factor from 2^71 to 2^72
2012-09-21	bcp19	NF	no factor from 2^70 to 2^71
2011-11-23	Stephan Grupp	C-LL	921CCB0E4DBF79CB