2 023 001 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
288248851149769	15	48.0	old
63923773401066287	17	55.8	2015-02-17 12:31:19
104983358266005189570527	24	76.5	2021-05-21 11:45:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	113 / 640

Estimated T-Level: 25.9 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	13D13C8DCDC90B56	2	0	1	3
Verified (Factored)	2017-11-14	kkmrkkblmbrbk	13D13C8DCDC90B56	2	610655	1	3
Verified	2021-05-26	Chad Steenerson	4FD7CA59E4A9CF28	3	185785	5	3

History

Date	User	Type	Result
2021-05-26	Elion	CERT	PRP Certification Proof certified good
2021-05-26	Chad Steenerson	C-PRP	M2023001/288248851149769/63923773401066287/104983358266005189570527 : 4FD7CA59E4A9CF28 PRP proof power = 7 PRP: Verified Proof certified good
2021-05-21	_p95holder_	F-ECM	Factor: 104983358266005189570527 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-14	kkmrkkblmbrbk	C-PRP	M2023001/288248851149769/63923773401066287 : 13D13C8DCDC90B56 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2023001/288248851149769/63923773401066287 : 13D13C8DCDC90B56 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-02-17	TJAOI	F	Factor: 63923773401066287 / TF: 55-56