3 095 959 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
930474509145145121774338871	27	89.6	2021-01-04 19:27:13

ECM

Digits	B1	Curves
25	50000	30 / 280

Estimated T-Level: 20.5 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jim Regan	5E7B1C28F9288495	0
Verified (Factored)	1999-06-06	Ole Tange	5E7B1C28F9288495	2626167

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-04	mrh	66BF4F78295D7CA3	1	2078541	5	3

History

Date	User	Type	Result
2022-02-20	Joss	NF-PM1	B1=1000000, B2=128282700
2021-01-05	Ben Delo	CERT	PRP Certification Proof certified good
2021-01-04	mrh	C-PRP	M3095959/930474509145145121774338871 : 66BF4F78295D7CA3 PRP proof power = 7 PRP: Verified Proof certified good
2021-01-04	MarkS	F-ECM	Factor: 930474509145145121774338871 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8574575159633698)
2018-08-19	ramgeis	NF	no factor from 2^67 to 2^68
2018-05-20	mikr	NF-PM1	B1=3000000, B2=100000000, E=12
2017-05-18	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-17	Joss	NF-PM1	B1=200000, B2=6167043, E=6
2015-06-11	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-05	Sid & Andy	NF	no factor from 2^61 to 2^62
2011-08-17	USAFSS	NF-PM1	B1=100000, B2=2125000, E=6
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=180000
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61