5 924 203 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
638192312660458959353	21	69.1	2011-06-11 07:52:41

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-11	Joey	45588499CCCBE0A4	0
Verified (Factored)	2000-12-31	Poul Poulsen	45588499CCCBE0A4	2848560

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-16	Oliver Kruse	89C531B792E2D5EB	1	504209	5	3
Verified	2018-04-22	kkmrkkblmbrbk	89C531B792E2D5EB	1	4177095	5	3

History

Date	User	Type	Result
2018-04-22	kkmrkkblmbrbk	C-PRP	M5924203/638192312660458959353 : 89C531B792E2D5EB PRP: Verified PRP without proof (not generated)
2017-12-16	Oliver Kruse	C-PRP	M5924203/638192312660458959353 : 89C531B792E2D5EB PRP: Verified PRP without proof (not generated)
2011-06-11	JimBa	F-ECM	Factor: 638192312660458959353
2011-05-04	USAFSS	NF-PM1	B1=70000, B2=1120000, E=6