2 013 359 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
4026719	7	21.9	old
19431194600608103821721	23	74.0	2021-08-12 17:38:09
1248868758343463312554601	25	80.0	2022-01-10 09:24:41

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	125 / 640

Estimated T-Level: 26.0 ⓘ

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)	2017-10-05	Oliver Kruse	F77045570596C299	1	0	1	3
Verified (Factored)	2017-11-13	ATH	F77045570596C299	1	1751758	1	3
Verified (Factored)	2021-08-12	SRJ2877	C1ECACCD9696E9DA	2	1478320	5	3
Verified	2022-01-11	LordJulius	C1ECACCD9696E9DA	3	522188	5	3
Verified	2022-01-12	_p95holder_	C1ECACCD9696E9DA	3	2006258	5	3

History

Date	User	Type	Result
2022-01-12	_p95holder_	C-PRP	M2013359/4026719/19431194600608103821721/1248868758343463312554601 : C1ECACCD9696E9DA PRP: Verified PRP without proof (not generated)
2022-01-11	Sergio Filippini	CERT	PRP Certification Proof certified good
2022-01-11	LordJulius	C-PRP	M2013359/4026719/19431194600608103821721/1248868758343463312554601 : C1ECACCD9696E9DA PRP proof power = 7 PRP: Verified Proof certified good
2022-01-10	_p95holder_	F-ECM	Factor: 1248868758343463312554601 / (ECM curve 2, B1=50000, B2=5000000)
2021-08-12	Ben Delo	CERT	PRP Certification Proof certified good
2021-08-12	SRJ2877	C-PRP	M2013359/4026719/19431194600608103821721 : C1ECACCD9696E9DA PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-08-12	Dylan Delgado	F-ECM	Factor: 19431194600608103821721 / (ECM curve 2, B1=50000, B2=6750000, Sigma=4223496678669257)
2017-11-13	ATH	C-PRP	M2013359/4026719 : F77045570596C299 PRP: Verified PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M2013359/4026719 : F77045570596C299 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12