38 785 073 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 2⁷²

P-1

B1 =	205000
B2 =	3946250

Status	Date	User	Residue	Shift
Verified	2007-08-14	Andrew Messier	ACE6EC9714DA070A	2731379
Verified	2016-09-09	Dana	ACE6EC9714DA070A	18294522

History

Date	User	Type	Result
2021-01-22	-Anonymous-	NF	no factor from 2^74 to 2^75
2020-02-21	-Anonymous-	NF	no factor from 2^73 to 2^74
2019-10-18	-Anonymous-	NF	no factor from 2^72 to 2^73
2019-06-02	monst	NF	no factor from 2^71 to 2^72
2016-09-09	Dana	C-LL	ACE6EC9714DA070A
2014-12-11	Bdot	NF	no factor from 2^70 to 2^71
2014-11-28	Mark Rose	NF	no factor from 2^69 to 2^70
2010-05-01	Carsten Kossendey	NF-PM1	B1=205000, B2=3946250, E=6