4 840 931 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
5576752513	10	32.4	old
8888520043409832383161	22	72.9	2019-06-23 22:50:28

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 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	38AA3AE429664680	1	0	1	3
Verified (Factored)	2018-03-29	Oliver Kruse	38AA3AE429664680	1	2448609	1	3
Verified	2019-06-24	Niels_Mache_Nextcloud	5D798038B8325D28	2	603714	5	3
Verified	2019-06-25	kkmrkkblmbrbk	5D798038B8325D28	2	648390	5	3

History

Date	User	Type	Result
2023-11-13	USAFSS	NF-PM1	B1=240000, B2=100109940
2019-06-25	kkmrkkblmbrbk	C-PRP	M4840931/5576752513/8888520043409832383161 : 5D798038B8325D28 PRP: Verified PRP without proof (not generated)
2019-06-24	Niels_Mache_Nextcloud	C-PRP	M4840931/5576752513/8888520043409832383161 : 5D798038B8325D28 PRP: Verified PRP without proof (not generated)
2019-06-23	ATH	F-ECM	Factor: 8888520043409832383161 / (ECM curve 1, B1=50000, B2=5000000, Sigma=1867047256107902)
2018-03-29	Oliver Kruse	C-PRP	M4840931/5576752513 : 38AA3AE429664680 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4840931/5576752513 : 38AA3AE429664680 PRP: Verified PRP without proof (not generated)