3 248 111 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
6496223	7	22.6	old
25107898031	11	34.5	2008-09-07 19:45:08
4831457176006342543049	22	72.0	2018-09-20 06:17:31

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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)	2017-11-02	Oliver Kruse	5379C8C8B4689074	2	1914580	5	3
Verified (Factored)	2017-12-13	kkmrkkblmbrbk	5379C8C8B4689074	2	1957892	5	3
Verified	2018-09-24	Oliver Kruse	5379C8C8B4689074	3	685948	5	3

History

Date	User	Type	Result
2022-09-07	Joss	NF-PM1	B1=1050000, B2=223284600
2022-01-07	Joss	NF-PM1	B1=1050000, B2=116447100
2021-09-11	Joss	NF	no factor from 2^67 to 2^68
2020-05-02	Joss	NF-PM1	B1=324811, B2=3248111, E=6
2018-09-24	Oliver Kruse	C-PRP	M3248111/6496223/25107898031/4831457176006342543049 : 5379C8C8B4689074 PRP: Verified PRP without proof (not generated)
2018-09-20	ATH	F-ECM	Factor: 4831457176006342543049 / (ECM curve 2, B1=50000, B2=5000000)
2017-12-13	kkmrkkblmbrbk	C-PRP	M3248111/6496223/25107898031 : 5379C8C8B4689074 PRP: Verified PRP without proof (not generated)
2017-11-02	Oliver Kruse	C-PRP	M3248111/6496223/25107898031 : 5379C8C8B4689074 PRP: Verified PRP without proof (not generated)
2008-09-07	Will Edgington	F	Factor: 25107898031