2+(4k)

2^1472+1

Open composite · C236

NFS Planning

GNFS Murphy estimate: 4.58e-17
SNFS Murphy score: 7.33e-20
Preferred method: GNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 0.95064

Identifiers

Target expression: 2^1472+1
Target link: FactorDB page
Target ID: 1000000000012151496
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C236
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(64) 11777.264961.154152996205287066617033473.33523098516168294853846224641.311940413960313330194586438395946497.221201329058694006864983554072724303142401.134933628653476835877432928792686879910590214913.C236

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 7.33e-20
Skew: 0.95064
Selected: Best

n: 47178221618211931038809886660004052160516953108868297049066752288173267683364006934508764106428093981251229878409824103012432333797960457774523619680156515307410918046839428534789430636556117502832271635955687015033257533469233138306561
# 2^1472+1, difficulty: 443.12, skewness: 1.22
# cost: 1.78264e+24, est. time: 848878155.35 GHz days (not accurate yet!)
# Optimized skew: 0.95064 Murphy: 7.33e-20
skew: 0.95064
c7: 1
c0: 4
Y1: -1645504557321206042154969182557350504982735865633579863348609024
Y0: 1
type: snfs