289 369 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
1090098743303	13	40.0	old
38559096952199	14	45.1	2008-07-21 09:15:59
8338136950741840428862343	25	82.8	2019-03-15 12:26:35
9160288835846560949429526913	28	92.9	2020-06-28 17:08:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	497 / 640

Estimated T-Level: 28.9 ⓘ

TF below 2^91 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-22	Oliver Kruse	A999A2D4245936A0	2	0	1	3
Verified (Factored)	2017-10-12	Oliver Kruse	A999A2D4245936A0	2	213578	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	A999A2D4245936A0	2	26643	1	3
Verified (Factored)	2019-03-16	ANONYMOUS	AFC16ABE35E7A842	3	174241	5	3
Verified (Factored)	2019-03-17	ANONYMOUS	AFC16ABE35E7A842	3	24620	5	3
Verified (Factored)	2019-04-09	kkmrkkblmbrbk	AFC16ABE35E7A842	3	207265	5	3
Verified	2020-06-29	trebor	AFC16ABE35E7A842	4	245611	5	3

History

Date	User	Type	Result
2023-02-14	USAFSS	NF-PM1	B1=3500000, B2=15490931610
2022-02-06	Lisander Viaene	NF-PM1	B1=50000
2020-06-29	trebor	C-PRP	M289369/1090098743303/38559096952199/8338136950741840428862343/9160288835846560949429526913 : AFC16ABE35E7A842 PRP: Verified PRP without proof (small exponent)
2020-06-28	MarkS	F-ECM	Factor: 9160288835846560949429526913 / (ECM curve 3, B1=250000, B2=25000000, Sigma=6867706353308525)
2019-04-09	kkmrkkblmbrbk	C-PRP	M289369/1090098743303/38559096952199/8338136950741840428862343 : AFC16ABE35E7A842 PRP: Verified PRP without proof (small exponent)
2019-03-17	ANONYMOUS	C-PRP	M289369/1090098743303/38559096952199/8338136950741840428862343 : AFC16ABE35E7A842 PRP: Verified PRP without proof (small exponent)
2019-03-16	ANONYMOUS	C-PRP	M289369/1090098743303/38559096952199/8338136950741840428862343 : AFC16ABE35E7A842 PRP: Verified PRP without proof (small exponent)
2019-03-15	TJAOI	F-ECM	Factor: 8338136950741840428862343 / (ECM curve 34, B1=250000, B2=25000000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M289369/1090098743303/38559096952199 : A999A2D4245936A0 PRP: Verified PRP without proof (small exponent)
2017-10-12	Oliver Kruse	C-PRP	M289369/1090098743303/38559096952199 : A999A2D4245936A0 PRP: Verified PRP without proof (small exponent)
2017-09-22	Oliver Kruse	C-PRP	M289369/1090098743303/38559096952199 : A999A2D4245936A0 PRP: Verified PRP without proof (not generated)
2017-09-22	Oliver Kruse	C-PRP	M289369/1090098743303/38559096952199 : A999A2D4245936A0 PRP without proof (not generated)
2008-07-21	J Feitsma	F	Factor: 38559096952199