1 508 383 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
2481787801391	13	41.2	old
2509579502990193640330369	25	81.1	2019-06-07 09:11:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-01	Oliver Kruse	7A3C99AE454BE856	1	0	1	3
Verified (Factored)	2017-10-29	kkmrkkblmbrbk	7A3C99AE454BE856	1	499427	1	3
Verified	2019-06-07	trebor	F0FF0B4323BFA940	2	605116	5	3
Verified	2019-06-07	ATH	F0FF0B4323BFA940	2	699542	5	3

History

Date	User	Type	Result
2019-06-07	ATH	C-PRP	M1508383/2481787801391/2509579502990193640330369 : F0FF0B4323BFA940 PRP: Verified PRP without proof (not generated)
2019-06-07	trebor	C-PRP	M1508383/2481787801391/2509579502990193640330369 : F0FF0B4323BFA940 PRP: Verified PRP without proof (not generated)
2019-06-07	TJAOI	F-ECM	Factor: 2509579502990193640330369 / (ECM curve 124, B1=50000, B2=5000000)
2017-10-29	kkmrkkblmbrbk	C-PRP	M1508383/2481787801391 : 7A3C99AE454BE856 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1508383/2481787801391 : 7A3C99AE454BE856 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12