4 581 277 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
73300433	8	26.1	old
1544356677185831	16	50.5	2014-05-28 11:36:54
1148467598151641794870303	25	79.9	2019-02-17 22:55:24

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)	2017-09-20	kkmrkkblmbrbk	016FFF38848D1DAF	2	0	1	3
Verified (Factored)	2018-02-24	Oliver Kruse	016FFF38848D1DAF	2	1178247	1	3
Verified	2019-02-19	GAN	F670FABB78F17D72	3	2181717	5	3
Verified	2019-02-19	marssystems	F670FABB78F17D72	3	218488	5	3

History

Date	User	Type	Result
2023-07-08	USAFSS	NF-PM1	B1=240000, B2=154470330
2019-02-19	marssystems	C-PRP	M4581277/73300433/1544356677185831/1148467598151641794870303 : F670FABB78F17D72 PRP: Verified PRP without proof (not generated)
2019-02-19	GAN	C-PRP	M4581277/73300433/1544356677185831/1148467598151641794870303 : F670FABB78F17D72 PRP: Verified PRP without proof (not generated)
2019-02-17	Samuel Schmidt	F-ECM	Factor: 1148467598151641794870303 / (ECM curve 3, B1=50000, B2=5000000)
2018-02-24	Oliver Kruse	C-PRP	M4581277/73300433/1544356677185831 : 016FFF38848D1DAF PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4581277/1544356677185831/73300433 : 016FFF38848D1DAF PRP: Verified PRP without proof (not generated)
2014-05-28	TJAOI	F	Factor: 1544356677185831