2 379 989 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
1827831553	10	30.8	old
259568487055424035658521057	27	87.7	2018-06-09 19:51:57

ECM

Digits	B1	Curves
25	50000	69 / 280

Estimated T-Level: 21.2 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-12	Oliver Kruse	189616E70C09C4ED	1	2107328	5	3
Verified (Factored)	2017-11-25	kkmrkkblmbrbk	189616E70C09C4ED	1	157184	5	3
Verified	2018-07-10	_p95holder_	189616E70C09C4ED	2	157228	5	3

P-1 factors

Date	Factor	B1	B2
2018-06-09	259568487055424035658521057	2000000	60000000

History

Date	User	Type	Result
2018-07-10	_p95holder_	C-PRP	M2379989/1827831553/259568487055424035658521057 : 189616E70C09C4ED PRP: Verified PRP without proof (not generated)
2018-06-09	alpertron	F-PM1	Factor: 259568487055424035658521057 / (P-1, B1=2000000, B2=60000000, E=12)
2017-11-25	kkmrkkblmbrbk	C-PRP	M2379989/1827831553 : 189616E70C09C4ED PRP: Verified PRP without proof (not generated)
2017-10-12	Oliver Kruse	C-PRP	M2379989/1827831553 : 189616E70C09C4ED PRP: Verified PRP without proof (not generated)