1 799 081 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
563679092300297	15	49.0	old
298733474967344817679	21	68.0	2018-03-27 10:45:57

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	5CBC59AD4879ED77	1	0	1	3
Verified (Factored)	2017-11-05	Chang Chia-Tche	5CBC59AD4879ED77	1	1210832	1	3
Verified	2018-03-29	Oliver Kruse	71E05590800016FF	2	40518	5	3
Verified	2018-03-30	Squeeky_Squirrel	71E05590800016FF	2	1251284	5	3

History

Date	User	Type	Result
2018-03-30	Squeeky_Squirrel	C-PRP	M1799081/563679092300297/298733474967344817679 : 71E05590800016FF PRP: Verified PRP without proof (not generated)
2018-03-29	Oliver Kruse	C-PRP	M1799081/563679092300297/298733474967344817679 : 71E05590800016FF PRP: Verified PRP without proof (not generated)
2018-03-27	Chang Chia-Tche	F-ECM	Factor: 298733474967344817679 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-05	Chang Chia-Tche	C-PRP	M1799081/563679092300297 : 5CBC59AD4879ED77 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1799081/563679092300297 : 5CBC59AD4879ED77 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12