1 697 039 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
29273922751	11	34.8	old
62210571561857	14	45.8	2008-09-30 13:30:10
129767580879761062201	21	66.8	2019-04-27 01:46:54
648652675389774453087359	24	79.1	2020-02-03 10:38:07

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 640

Estimated T-Level: 25.8 ⓘ

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)	2017-09-30	alpertron	326C2229CECD6DC2	2	0	1	3
Verified (Factored)	2017-10-18	Oliver Kruse	326C2229CECD6DC2	2	553215	1	3
Verified (Factored)	2019-04-27	ATH	DC67B0D8AD909613	3	642207	5	3
Verified (Factored)	2019-04-27	kkmrkkblmbrbk	DC67B0D8AD909613	3	1092566	5	3
Verified	2020-02-04	Niels_Mache_Nextcloud	DC67B0D8AD909613	4	709768	5	3

History

Date	User	Type	Result
2020-02-04	Niels_Mache_Nextcloud	C-PRP	M1697039/29273922751/62210571561857/129767580879761062201/648652675389774453087359 : DC67B0D8AD909613 PRP: Verified PRP without proof (not generated)
2020-02-03	TJAOI	F-ECM	Factor: 648652675389774453087359 / (ECM curve 79, B1=50000, B2=5000000)
2019-04-27	kkmrkkblmbrbk	C-PRP	M1697039/29273922751/62210571561857/129767580879761062201 : DC67B0D8AD909613 PRP: Verified PRP without proof (not generated)
2019-04-27	ATH	C-PRP	M1697039/29273922751/62210571561857/129767580879761062201 : DC67B0D8AD909613 PRP: Verified PRP without proof (not generated)
2019-04-27	Chang Chia-Tche	F-ECM	Factor: 129767580879761062201 / (ECM curve 3, B1=50000, B2=5000000)
2017-10-18	Oliver Kruse	C-PRP	M1697039/29273922751/62210571561857 : 326C2229CECD6DC2 PRP: Verified PRP without proof (not generated)
2017-09-30	alpertron	C-PRP	M1697039/29273922751/62210571561857 : 326C2229CECD6DC2 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-09-30	markr	F	Factor: 62210571561857