1 818 527 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
87289297	8	26.4	old
3556954170493111244743889	25	81.6	2020-12-02 12:55:26

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-03	Oliver Kruse	77264DC460322EAA	1	0	1	3
Verified (Factored)	2017-11-06	Chang Chia-Tche	77264DC460322EAA	1	1637222	1	3
Verified	2020-12-02	mrh	11B72C4DCEBDE558	2	1311804	5	3

History

Date	User	Type	Result
2020-12-02	jovada	CERT	PRP Certification Proof certified good
2020-12-02	mrh	C-PRP	M1818527/87289297/3556954170493111244743889 : 11B72C4DCEBDE558 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-02	nordi	F-ECM	Factor: 3556954170493111244743889 / (ECM curve 7, B1=50000, B2=5000000, Sigma=8315645765883980)
2017-11-06	Chang Chia-Tche	C-PRP	M1818527/87289297 : 77264DC460322EAA PRP: Verified (Factored) PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1818527/87289297 : 77264DC460322EAA PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12