1 771 027 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
930064018474236957912457463	27	89.6	2015-05-14 05:21:30

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Kevin Postlewaite	CCE73A55F568D0F2	0
Verified (Factored)	1998-12-06	Louis Towles	CCE73A55F568D0F2	934035

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-03	Oliver Kruse	49B0F6C18171D8F3	1	0	1	3
Verified	2017-11-04	kkmrkkblmbrbk	49B0F6C18171D8F3	1	703292	1	3

P-1 factors

Date	Factor	B1	B2
2015-05-14	930064018474236957912457463	2475400	86660000

History

Date	User	Type	Result
2017-11-04	kkmrkkblmbrbk	C-PRP	M1771027/930064018474236957912457463 : 49B0F6C18171D8F3 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1771027/930064018474236957912457463 : 49B0F6C18171D8F3 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-05-14	mikr	F-PM1	Factor: 930064018474236957912457463 / (P-1, B1=2475400, B2=86660000, E=12)
2015-04-30	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-30	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-18	Joss	NF-PM1	B1=172482
2014-05-09	Joss	NF-PM1	B1=136241
2014-04-08	Joss	NF-PM1	B1=100000
2011-02-08	Carsten Kossendey	NF-PM1	B1=95000, B2=1615000, E=6
2010-12-13	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-19	Architects Cubed	NF	no factor from 2^60 to 2^61