1 845 133 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
1717536317983991697601	22	70.5	2020-01-20 22:39:20

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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 Edge	2DBCE77CB33CAC20	0
Verified (Factored)		Marc Honey	2DBCE77CB33CAC20	0
Verified (Factored)	1999-02-21	Andrew D. Luebke	2DBCE77CB33CAC20	1735968
Verified (Factored)	2016-06-02	MadPoo	2DBCE77CB33CAC20	664769

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-01-20	mrh	351B193347D4CC13	1	1743571	5	3
Verified	2020-01-30	kracker	351B193347D4CC13	1	1226383	5	3

History

Date	User	Type	Result
2020-01-30	kracker	C-PRP	M1845133/1717536317983991697601 : 351B193347D4CC13 PRP: Verified PRP without proof (not generated)
2020-01-20	mrh	C-PRP	M1845133/1717536317983991697601 : 351B193347D4CC13 PRP: Verified PRP without proof (not generated)
2020-01-20	mnd9	F-ECM	Factor: 1717536317983991697601 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2300802768615081)
2019-06-24	TJAOI	NF	no factor from 2^67 to 2^68
2017-11-10	TJAOI	NF	no factor from 2^66 to 2^67
2016-10-19	Joss	NF-PM1	B1=1845133, B2=184513300, E=12
2016-06-02	MadPoo	C-LL	2DBCE77CB33CAC20
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-10-06	Bruno Victal	NF-PM1	B1=500000, B2=15000000, E=12
2015-09-07	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-27	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-27	snme2pm1	NF	no factor from 2^63 to 2^64
2012-01-01	markr	NF-PM1	B1=275000, B2=6000000, E=12
2011-01-21	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-09	Architects Cubed	NF	no factor from 2^60 to 2^61