2+(4k)

2^1432+1

Open composite · C299

NFS Planning

GNFS Murphy estimate: 1.02e-20
SNFS Murphy score: 1.76e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.72214

Identifiers

Target expression: 2^1432+1
Target link: FactorDB page
Target ID: 1000000000012151456
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C299
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(8) 6925153.493203713.3152147041.53170668669989158433.31141417202523239066281921.354775289898905593932150334645351022670042846079241734834753.C299

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.76e-19
Skew: 1.72214
Selected: Best

n: 73113004399913213374456187316302274872576816231965881796308777805065794338555898361757572484077920288991934435225362626718688924026831081533864117054460644775644286317070565370310559268735324523350656351446250096453663550630784541654889547743260330207360521685087419187878716915969280392148804180001
# 2^1432+1, difficulty: 431.98, skewness: 1.35
# cost: 9.70967e+23, est. time: 462365381.61 GHz days (not accurate yet!)
# Optimized skew: 1.72214 Murphy: 1.76e-19
skew: 1.72214
c7: 1
c0: 8
Y1: -1
Y0: 51422017416287688817342786954917203280710495801049370729644032
type: snfs