3 450 593 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
373169996182993917098039	24	78.3	2021-06-24 12:46:25

ECM

Digits	B1	Curves
25	50000	29 / 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)		Charlie Dorian	4D13B982F0C410F3	0
Verified (Factored)		Jan Braconnier	4D13B982F0C410F3	0
Verified (Factored)	1999-07-27	Ralph Sassenhausen	4D13B982F0C410F3	287844

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-25	tottenhoff	34F88A050D1299F4	1	173357	5	3

History

Date	User	Type	Result
2022-04-10	Joss	NF-PM1	B1=1000000, B2=126668850
2021-06-25	curtisc	CERT	PRP Certification Proof certified good
2021-06-25	tottenhoff	C-PRP	M3450593/373169996182993917098039 : 34F88A050D1299F4 PRP proof power = 7 PRP: Verified Proof certified good
2021-06-24	kutens	F-ECM	Factor: 373169996182993917098039 / (ECM curve 1, B1=50000, B2=6800000, Sigma=5949249494599290)
2021-01-05	axn	NF	no factor from 2^68 to 2^69
2019-02-18	TJAOI	NF	no factor from 2^67 to 2^68
2017-02-08	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-04-16	Gordon Spence	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
2014-09-20	HBendtz	NF-PM1	B1=500000, B2=10000000, E=12
2014-08-21	Joss	NF-PM1	B1=78601
2012-08-18	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-11-05	USAFSS	NF-PM1	B1=60000, B2=945000, E=6
2011-07-31	markr	NF	no factor to 2^62
2009-08-15	Carsten Kossendey	NF-PM1	B1=20000, B2=235000
2009-03-22	S485122	NF	no factor from 2^60 to 2^61