1 789 373 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
331386679682063	15	48.2	old
177491689478873969399	21	67.3	2017-12-13 17:03:41

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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	8EB3DEF7D340DEB6	1	0	1	3
Verified (Factored)	2017-11-05	kkmrkkblmbrbk	8EB3DEF7D340DEB6	1	70549	1	3
Verified	2017-12-14	Luigi Morelli	070C2B33E17FCC8E	2	1384372	5	3
Verified	2017-12-14	kkmrkkblmbrbk	070C2B33E17FCC8E	2	796269	5	3

History

Date	User	Type	Result
2017-12-14	kkmrkkblmbrbk	C-PRP	M1789373/331386679682063/177491689478873969399 : 070C2B33E17FCC8E PRP: Verified PRP without proof (not generated)
2017-12-14	Luigi Morelli	C-PRP	M1789373/331386679682063/177491689478873969399 : 070C2B33E17FCC8E PRP: Verified PRP without proof (not generated)
2017-12-13	ATH	F-ECM	Factor: 177491689478873969399 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-05	kkmrkkblmbrbk	C-PRP	M1789373/331386679682063 : 8EB3DEF7D340DEB6 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1789373/331386679682063 : 8EB3DEF7D340DEB6 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12