2LM

2^2398+1 M

Open composite · C326 · component M

NFS Planning

GNFS Murphy estimate: 2.76e-22
SNFS Murphy score: 1.45e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.55859

Identifiers

Target expression: 2^1199+1+2^600
Target value: 8609239728192875309033688848026317741789962372724344960866618408200370345620872809698742268618023086643185459515980793894292463645408330512495804941364358672329751735827995440442344097775596442946192044617391954276823855080352527041846282540348673945179004796016116696406236397685638888285231687028006332429068768148443568320947872066346518399760157080041816065
Target link: FactorDB page
Target ID: 1100000000005049167
Target changed: -
Parent query: 2^2398+1
Parent ID: -
Cofactor token: C326
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2,22L,218L) C326

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 1.45e-17
Skew: 1.55859
Selected: Best

n: 33412176505662240354368370484069473244654711288811637581405137208186082238623525098056503449806874342844508249256718089773724941389261740488336405770071096644245897508313844602682750195879301126198337410222373556839158330275883473775399657190683164324934266103516840757540497104112120099814990971770400084063025572202273581381
# 2^2398+1 Aurifeuillian M, difficulty: 361.24, skewness: 1.12
# cost: 1.61042e+22, est. time: 7668689.93 GHz days (not accurate yet!)
# Optimized skew: 1.55859 Murphy: 1.45e-17
skew: 1.55859
c6: 1
c3: 2
c0: 2
Y1: -1
Y0: 1606938044258990275541962092341162602522202993782792835301376
type: snfs