1 853 807 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
122351263	9	26.9	old
529911299168011084854799	24	78.8	2020-11-20 19:56:48

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-04	Oliver Kruse	A18482D64242FD9A	1	0	1	3
Verified (Factored)	2017-11-07	kkmrkkblmbrbk	A18482D64242FD9A	1	1279431	1	3
Verified	2020-11-23	volki	B2897B52E459932A	2	253525	5	3

History

Date	User	Type	Result
2020-11-24	Ben Delo	CERT	PRP Certification Proof certified good
2020-11-23	volki	C-PRP	M1853807/122351263/529911299168011084854799 : B2897B52E459932A PRP proof power = 7 PRP: Verified Proof certified good
2020-11-20	_p95holder_	F-ECM	Factor: 529911299168011084854799 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-07	kkmrkkblmbrbk	C-PRP	M1853807/122351263 : A18482D64242FD9A PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1853807/122351263 : A18482D64242FD9A PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12