2 571 937 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
130486533106125082751	21	66.8	2009-02-18 04:40:34

ECM

Digits	B1	Curves
25	50000	52 / 280

Estimated T-Level: 20.9 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-11-07	Shane Bumpurs	B98AA7CB0174C18D	0
Verified (Factored)	1999-04-13	Ian R Lowman	B98AA7CB0174C18D	1869833

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-15	Oliver Kruse	4906E2530E74AFAC	1	1735093	5	3
Verified	2017-12-01	kkmrkkblmbrbk	4906E2530E74AFAC	1	1791895	5	3

History

Date	User	Type	Result
2023-01-25	USAFSS	NF-PM1	B1=232000, B2=246888180
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2017-12-01	kkmrkkblmbrbk	C-PRP	M2571937/130486533106125082751 : 4906E2530E74AFAC PRP: Verified PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2571937/130486533106125082751 : 4906E2530E74AFAC PRP: Verified PRP without proof (not generated)
2009-02-18	Aca Arsov	F-ECM	Factor: 130486533106125082751
2009-01-30	Sturle Sunde	NF	no factor from 2^60 to 2^61