47 560 199 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1357266344905484369510207	25	80.2	2019-05-11 08:59:46
2337773375409538949110038401	28	90.9	2019-05-11 08:59:46

Status	Date	User	Residue	Shift
Verified (Factored)	2010-01-13	curtisc	94B7770459673087	17845300
Verified (Factored)	2019-02-06	AUM - Kuwait	94B7770459673087	24331306

P-1 factors

Date	Factor	B1	B2
2019-05-11	3172981124459461683074638706688276815703839331459007	1000000	20000000

History

Date	User	Type	Result
2019-05-11	Sid & Andy	F-PM1	Factor: 3172981124459461683074638706688276815703839331459007 / (P-1, B1=1000000, B2=20000000, E=12)
2019-02-06	AUM - Kuwait	C-LL	94B7770459673087
2018-01-02	-Anonymous-	NF	no factor from 2^72 to 2^73
2015-12-04	-Anonymous-	NF	no factor from 2^71 to 2^72
2015-10-19	Sid & Andy	NF	no factor from 2^70 to 2^71
2015-08-13	Gordon Spence	NF	no factor from 2^69 to 2^70
2010-01-13	curtisc	C-LL	94B7770459673087
2009-09-21	JohanSeland	NF-PM1	B1=745000