2 490 889 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
74726671	8	26.2	old
1925284485674013479671	22	70.7	2018-03-05 00:00:31

ECM

Digits	B1	Curves
25	50000	83 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-14	Oliver Kruse	FDA80B0CC24DB1A6	1	404275	5	3
Verified (Factored)	2017-11-30	storm5510	FDA80B0CC24DB1A6	1	908	5	3
Verified	2018-03-08	Oliver Kruse	FDA80B0CC24DB1A6	2	1407865	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2018-03-08	Oliver Kruse	C-PRP	M2490889/74726671/1925284485674013479671 : FDA80B0CC24DB1A6 PRP: Verified PRP without proof (not generated)
2018-03-05	ATH	F-ECM	Factor: 1925284485674013479671 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-30	storm5510	C-PRP	M2490889/74726671 : FDA80B0CC24DB1A6 PRP: Verified PRP without proof (not generated)
2017-10-14	Oliver Kruse	C-PRP	M2490889/74726671 : FDA80B0CC24DB1A6 PRP: Verified PRP without proof (not generated)