2+(odd)

2^1441+1

Open composite · C347

NFS Planning

GNFS Murphy estimate: 1.67e-23
SNFS Murphy score: 1.52e-19
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 7
SNFS skew: 1.41362

Identifiers

Target expression: 2^1441+1
Target link: FactorDB page
Target ID: 1000000000012151465
Target changed: -
Parent query: Same as target
Parent ID: -
Cofactor token: C347
Imported: Jun 03, 2026, 04:29 PM UTC

Raw pmain126 Factorization

(1,11,131) 23057.5128925363.222159202911713.20480669195104009. C347

SNFS Polynomial

Polynomial

Degree: 7
Murphy: 1.52e-19
Skew: 1.41362
Selected: Best

n: 60818539389273417587711711763648983036004919966566986250749259975236376940564385618144565524124839060259467602501841031620572736756005932114723418223862548349129900458368022087520075726023544865259970977475625015497957407072005516111009748260031821684707314219996051993323039166465126659475826325997148698636408892539843318881914376885444007104697
# 2^1441+1, difficulty: 434.09, skewness: 1.10
# cost: 1.09002e+24, est. time: 519058837.82 GHz days (not accurate yet!)
# Optimized skew: 1.41362 Murphy: 1.52e-19
skew: 1.41362
c7: 1
c0: 2
Y1: -1
Y0: 102844034832575377634685573909834406561420991602098741459288064
type: snfs