4 187 059 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
75367063	8	26.2	old
123702471097	12	36.8	2008-09-07 23:39:03
619282774337	12	39.2	2008-09-07 23:39:03
1904772890463777873127	22	70.7	2018-12-06 05:51:55

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-15	Oliver Kruse	DBD4E47A41D253F1	3	2806139	5	3
Verified (Factored)	2017-12-27	kkmrkkblmbrbk	DBD4E47A41D253F1	3	2753819	5	3
Verified	2018-12-08	Oliver Kruse	DBD4E47A41D253F1	4	2001279	5	3

History

Date	User	Type	Result
2023-03-02	USAFSS	NF-PM1	B1=224000, B2=119776800
2018-12-08	Oliver Kruse	C-PRP	M4187059/75367063/123702471097/619282774337/1904772890463777873127 : DBD4E47A41D253F1 PRP: Verified PRP without proof (not generated)
2018-12-06	ATH	F-ECM	Factor: 1904772890463777873127 / (ECM curve 3, B1=50000, B2=5000000)
2017-12-27	kkmrkkblmbrbk	C-PRP	M4187059/75367063/123702471097/619282774337 : DBD4E47A41D253F1 PRP: Verified PRP without proof (not generated)
2017-11-15	Oliver Kruse	C-PRP	M4187059/75367063/123702471097/619282774337 : DBD4E47A41D253F1 PRP: Verified PRP without proof (not generated)
2008-09-07	Will Edgington	F	Factor: 619282774337
2008-09-07	Will Edgington	F	Factor: 123702471097