3 383 927 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
6506979277770047	16	52.5	old
21578077953541486824373081	26	84.2	2018-10-16 11:14:33

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-05	kkmrkkblmbrbk	F9D3D770DA6C519E	1	2520823	5	3
Verified (Factored)	2017-11-21	Oliver Kruse	F9D3D770DA6C519E	1	2293757	5	3
Verified	2018-10-16	rucio	F9D3D770DA6C519E	2	131087	5	3

History

Date	User	Type	Result
2022-09-07	Joss	NF-PM1	B1=1076784, B2=213444000
2022-01-07	Joss	NF-PM1	B1=1076784, B2=111642300
2021-04-11	Joss	NF	no factor from 2^67 to 2^68
2021-03-14	Joss	NF-PM1	B1=338392, B2=7106246, E=6
2021-03-14	Joss	NF-PM1	B1=338392, B2=3722319, E=6
2018-10-16	rucio	C-PRP	M3383927/6506979277770047/21578077953541486824373081 : F9D3D770DA6C519E PRP: Verified PRP without proof (not generated)
2018-10-16	ATH	F-ECM	Factor: 21578077953541486824373081 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-21	Oliver Kruse	C-PRP	M3383927/6506979277770047 : F9D3D770DA6C519E PRP: Verified PRP without proof (not generated)
2017-11-05	kkmrkkblmbrbk	C-PRP	M3383927/6506979277770047 : F9D3D770DA6C519E PRP: Verified PRP without proof (not generated)