4 927 387 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
664594724117641	15	49.2	old
2459024259038261483999	22	71.1	2019-08-11 18:37:24

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	7228228605AFD37F	1	0	1	3
Verified (Factored)	2018-04-09	ATH	7228228605AFD37F	1	4113279	1	3
Verified	2019-08-12	Niels_Mache_Nextcloud	1D2B20D8333FCC9B	2	491271	5	3
Verified	2019-08-12	marssystems	1D2B20D8333FCC9B	2	2525907	5	3

History

Date	User	Type	Result
2023-09-20	USAFSS	NF-PM1	B1=256000, B2=105522060
2019-08-12	marssystems	C-PRP	M4927387/664594724117641/2459024259038261483999 : 1D2B20D8333FCC9B PRP: Verified PRP without proof (not generated)
2019-08-12	Niels_Mache_Nextcloud	C-PRP	M4927387/664594724117641/2459024259038261483999 : 1D2B20D8333FCC9B PRP: Verified PRP without proof (not generated)
2019-08-11	ATH	F-ECM	Factor: 2459024259038261483999 / (ECM curve 1, B1=50000, B2=5000000, Sigma=8495742863695347)
2018-04-09	ATH	C-PRP	M4927387/664594724117641 : 7228228605AFD37F PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4927387/664594724117641 : 7228228605AFD37F PRP: Verified PRP without proof (not generated)