2^1379-1

Open composite · C342

NFS Planning

GNFS Murphy estimate: 3.26e-23
SNFS Murphy score: 2.33e-17
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 6
SNFS skew: 1.41936

Identifiers

Target expression: 2^1379-1
Target link: FactorDB page
Target ID: 1000000000000001379
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C342
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(7,197) 4274004212633. C342

SNFS Polynomial

Polynomial

Degree: 6
Murphy: 2.33e-17
Skew: 1.41936
Selected: Best

n: 121008592073601692016651434752860901670059548508864638204434682411818092226664185704380038056661843379016252606498065722837939181401914337324080511308206313153540060345939082018991100934166974436963326196052004628641723943893770555413326846066445782852821872166192068549945401124643293530652488774439091719142391829350210992184268524074762967
# 2^1379-1, difficulty: 355.82, skewness: 1.00
# cost: 1.15404e+22, est. time: 5495442.89 GHz days (not accurate yet!)
# Optimized skew: 1.41936 Murphy: 2.33e-17
skew: 1.41936
c6: 1
c5: 1
c4: 1
c3: 1
c2: 1
c1: 1
c0: 1
Y1: -1
Y0: 200867255532373784442745261542645325315275374222849104412672
type: snfs