3 120 473 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
609145106602007	15	49.1	old
31227423402736553	17	54.8	2014-12-15 12:38:02
278443379922326292071	21	67.9	2018-07-24 08:35:59

ECM

Digits	B1	Curves
25	50000	4 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-30	Oliver Kruse	2833979790442E18	2	1985788	5	3
Verified (Factored)	2017-12-12	kkmrkkblmbrbk	2833979790442E18	2	42679	5	3
Verified	2018-07-26	_p95holder_	2833979790442E18	3	179330	5	3

History

Date	User	Type	Result
2022-10-07	Joss	NF-PM1	B1=1200000, B2=451528350
2022-09-04	Joss	NF-PM1	B1=1200000, B2=236513550
2022-06-19	LordJulius	NF	no factor from 2^65 to 2^66
2022-06-19	LordJulius	NF	no factor from 2^64 to 2^65
2022-06-19	LordJulius	NF	no factor from 2^63 to 2^64
2022-06-19	LordJulius	NF	no factor from 2^62 to 2^63
2022-01-19	Joss	F	Factor: 278443379922326292071 / TF: 67-68
2022-01-07	Joss	NF-PM1	B1=1050000, B2=116447100
2021-02-07	Joss	NF	no factor from 2^66 to 2^67
2020-12-28	Joss	NF-PM1	B1=312047, B2=3120473, E=6
2018-07-26	_p95holder_	C-PRP	M3120473/609145106602007/31227423402736553/278443379922326292071 : 2833979790442E18 PRP: Verified PRP without proof (not generated)
2018-07-24	IanGlencross	F-ECM	Factor: 278443379922326292071 / (ECM curve 1, B1=50000, B2=5000000)
2017-12-12	kkmrkkblmbrbk	C-PRP	M3120473/609145106602007/31227423402736553 : 2833979790442E18 PRP: Verified PRP without proof (not generated)
2017-10-30	Oliver Kruse	C-PRP	M3120473/609145106602007/31227423402736553 : 2833979790442E18 PRP: Verified PRP without proof (not generated)
2014-12-15	TJAOI	F	Factor: 31227423402736553 / TF: 54-55