280 817 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
2246537	7	21.1	old
130924947656071	15	46.9	2014-02-21 11:18:49
1305998059646546094771212783	28	90.1	2022-03-08 20:02:50

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	582 / 640

Estimated T-Level: 29.5 ⓘ

TF below 2^93 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	61504655C78B242E	2	0	1	3
Verified (Factored)	2017-10-13	kkmrkkblmbrbk	61504655C78B242E	2	128781	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	B84D9ACC0FBDA8A2	2	77851	5	3
Verified	2022-03-08	LordJulius	B84D9ACC0FBDA8A2	3	28330	5	3
Verified	2022-03-10	_p95holder_	B84D9ACC0FBDA8A2	3	87450	5	3

History

Date	User	Type	Result
2023-03-19	Naegi Makoto	NF-PM1	B1=2000000, B2=61940778900
2022-03-10	_p95holder_	C-PRP	M280817/2246537/130924947656071/1305998059646546094771212783 : B84D9ACC0FBDA8A2 PRP: Verified PRP without proof (small exponent)
2022-03-09	REThern	CERT	PRP Certification Proof certified good
2022-03-08	LordJulius	C-PRP	M280817/2246537/130924947656071/1305998059646546094771212783 : B84D9ACC0FBDA8A2 PRP proof power = 5 PRP: Verified Proof certified good
2022-03-08	_p95holder_	F-ECM	Factor: 1305998059646546094771212783 / (ECM curve 3, B1=250000, B2=25000000)
2022-01-03	Lisander Viaene	NF-PM1	B1=100000
2020-04-17	Oliver Kruse	C-PRP	M280817/2246537/130924947656071 : B84D9ACC0FBDA8A2 PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M280817/2246537/130924947656071 : 61504655C78B242E PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M280817/2246537/130924947656071 : 61504655C78B242E PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M280817/2246537/130924947656071 : 61504655C78B242E PRP without proof (not generated)
2014-02-21	TJAOI	F	Factor: 130924947656071