2 616 767 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
15262322713516530889	20	63.7	2010-06-12 09:11:46

ECM

Digits	B1	Curves
25	50000	6 / 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)		Bernhard Brandmair	AD9D125E6EB66763	0
Verified (Factored)	1999-04-23	Douglas A Jeeves	AD9D125E6EB66763	1577238

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-17	Oliver Kruse	DFA0236CAD490E51	1	2558429	5	3
Verified	2017-12-02	kkmrkkblmbrbk	DFA0236CAD490E51	1	1479453	5	3

History

Date	User	Type	Result
2022-03-11	LordJulius	NF	no factor from 2^1 to 2^60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	kkmrkkblmbrbk	C-PRP	M2616767/15262322713516530889 : DFA0236CAD490E51 PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M2616767/15262322713516530889 : DFA0236CAD490E51 PRP: Verified PRP without proof (not generated)
2010-06-12	SubPrime	F-ECM	Factor: 15262322713516530889
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61