2 130 581 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
45181100687	11	35.4	old
62982057740108527	17	55.8	2015-02-16 12:22:06
13369233879448471312286017	26	83.5	2023-03-25 07:59:21

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	166 / 640

Estimated T-Level: 26.3 ⓘ

TF below 2^82 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-08	Oliver Kruse	429B1506BD0BA890	2	0	1	3
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	429B1506BD0BA890	2	1635838	1	3
Verified	2023-03-25	JacobZ	E50052F0C81A4D00	3	512697	5	3

History

Date	User	Type	Result
2023-03-25	curtisc	CERT	PRP Certification Proof certified good
2023-03-25	JacobZ	C-PRP	M2130581/45181100687/62982057740108527/13369233879448471312286017 : E50052F0C81A4D00 PRP proof power = 7 PRP: Verified Proof certified good
2023-03-25	JacobZ	F-ECM	Factor: 13369233879448471312286017 / (ECM curve 37, B1=50000, B2=43750000, Sigma=352968865989585)
2017-11-18	kkmrkkblmbrbk	C-PRP	M2130581/45181100687/62982057740108527 : 429B1506BD0BA890 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2130581/45181100687/62982057740108527 : 429B1506BD0BA890 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-18	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-02-16	TJAOI	F	Factor: 62982057740108527 / TF: 55-56