517 571 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
314683169	9	28.2	old
62504086435777294980000167	26	85.7	2018-07-27 12:39:15

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-27	Oliver Kruse	5DAC85DCAC04A78E	1	0	1	3
Verified (Factored)	2017-09-28	Oliver Kruse	5DAC85DCAC04A78E	1	0	1	3
Verified (Factored)	2017-11-07	kkmrkkblmbrbk	5DAC85DCAC04A78E	1	490568	1	3
Verified	2018-07-28	ANONYMOUS	0F841CCFA1E81F31	2	115008	5	3
Verified	2018-07-30	_p95holder_	0F841CCFA1E81F31	2	104830	5	3

History

Date	User	Type	Result
2022-12-19	USAFSS	NF-PM1	B1=2000000, B2=6733146420
2018-07-30	_p95holder_	C-PRP	M517571/314683169/62504086435777294980000167 : 0F841CCFA1E81F31 PRP: Verified PRP without proof (small exponent)
2018-07-28	ANONYMOUS	C-PRP	M517571/314683169/62504086435777294980000167 : 0F841CCFA1E81F31 PRP: Verified PRP without proof (small exponent)
2018-07-27	TJAOI	F-ECM	Factor: 62504086435777294980000167 / (ECM curve 9, B1=250000, B2=25000000)
2017-11-07	kkmrkkblmbrbk	C-PRP	M517571/314683169 : 5DAC85DCAC04A78E PRP: Verified PRP without proof (small exponent)
2017-09-28	Oliver Kruse	C-PRP	M517571/314683169 : 5DAC85DCAC04A78E PRP: Verified PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M517571/314683169 : 5DAC85DCAC04A78E PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=1500000, B2=50000000, E=12