2 398 103 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
2167168488703068281	19	60.9	old
22649655631440389361983	23	74.3	2018-06-25 11:16:46

ECM

Digits	B1	Curves
25	50000	100 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Chionh Wei Peng	BE67D0210AF8DFA9	0
Verified (Factored)	1999-03-26	curtis brown	BE67D0210AF8DFA9	1251543

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-12	Oliver Kruse	F850215D323F8D75	1	675104	5	3
Verified (Factored)	2017-11-26	kkmrkkblmbrbk	F850215D323F8D75	1	799152	5	3
Verified	2018-06-25	ATH	F850215D323F8D75	2	817205	5	3
Verified	2018-06-25	francijezek	F850215D323F8D75	2	77573	5	3
Verified	2018-06-25	francijezek	F850215D323F8D75	2	2177523	5	3

P-1 factors

Date	Factor	B1	B2
2018-06-25	22649655631440389361983	2000000	60000000

History

Date	User	Type	Result
2018-06-25	francijezek	C-PRP	M2398103/2167168488703068281/22649655631440389361983 : F850215D323F8D75 PRP: Verified PRP without proof (not generated)
2018-06-25	francijezek	C-PRP	M2398103/2167168488703068281/22649655631440389361983 : F850215D323F8D75 PRP: Verified PRP without proof (not generated)
2018-06-25	ATH	C-PRP	M2398103/2167168488703068281/22649655631440389361983 : F850215D323F8D75 PRP: Verified PRP without proof (not generated)
2018-06-25	alpertron	F-PM1	Factor: 22649655631440389361983 / (P-1, B1=2000000, B2=60000000, E=12)
2017-11-26	kkmrkkblmbrbk	C-PRP	M2398103/2167168488703068281 : F850215D323F8D75 PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2398103/2167168488703068281 : F850215D323F8D75 PRP: Verified PRP without proof (not generated)