2 025 641 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
113435897	9	26.8	old
1321606746809263	16	50.2	2014-05-23 11:19:37
715660224027949451351	21	69.3	2021-12-01 14:34:24

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	112 / 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	341B58BF2AB03415	2	0	1	3
Verified (Factored)	2017-11-14	kkmrkkblmbrbk	341B58BF2AB03415	2	61093	1	3
Verified	2021-12-03	_p95holder_	F4E339AAD7A111EC	3	1179227	5	3
Verified	2021-12-09	kracker	F4E339AAD7A111EC	3	91181	5	3

History

Date	User	Type	Result
2021-12-09	kracker	C-PRP	M2025641/113435897/1321606746809263/715660224027949451351 : F4E339AAD7A111EC PRP: Verified PRP without proof (not generated)
2021-12-03	_p95holder_	C-PRP	M2025641/113435897/1321606746809263/715660224027949451351 : F4E339AAD7A111EC PRP: Verified PRP without proof (not generated)
2021-12-01	_p95holder_	F-ECM	Factor: 715660224027949451351 / (ECM curve 6, B1=50000, B2=5000000)
2017-11-14	kkmrkkblmbrbk	C-PRP	M2025641/113435897/1321606746809263 : 341B58BF2AB03415 PRP: Verified PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2025641/113435897/1321606746809263 : 341B58BF2AB03415 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-05-23	TJAOI	F	Factor: 1321606746809263