4 609 447 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
993475586933041	15	49.8	old
116245104336025193801	21	66.7	2019-02-23 08:24:49

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	FEC67B09982C02D2	1	0	1	3
Verified (Factored)	2018-02-28	Oliver Kruse	FEC67B09982C02D2	1	3560085	1	3
Verified	2019-02-24	oodaira	36F6A90D082180E5	2	3956550	5	3
Verified	2019-02-24	ATH	36F6A90D082180E5	2	4505958	5	3

History

Date	User	Type	Result
2023-07-24	USAFSS	NF-PM1	B1=240000, B2=91991760
2019-02-24	ATH	C-PRP	M4609447/993475586933041/116245104336025193801 : 36F6A90D082180E5 PRP: Verified PRP without proof (not generated)
2019-02-24	oodaira	C-PRP	M4609447/993475586933041/116245104336025193801 : 36F6A90D082180E5 PRP: Verified PRP without proof (not generated)
2019-02-23	MarkS	F-ECM	Factor: 116245104336025193801 / (ECM curve 1, B1=50000, B2=5000000)
2018-02-28	Oliver Kruse	C-PRP	M4609447/993475586933041 : FEC67B09982C02D2 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4609447/993475586933041 : FEC67B09982C02D2 PRP: Verified PRP without proof (not generated)