2LM

2^2614+1 L

Open composite · C352 · component L

NFS Planning

GNFS Murphy estimate: 8.56e-24
SNFS Murphy score: 2.74e-18
Preferred method: SNFS
SNFS possible: Yes
SNFS degree: 8
SNFS skew: 0.81228

Identifiers

Target expression: 2^1307+1-2^654
Target value: 2793858024691818734522583245185567579581193529904622658033227149295824313543693682649211388122601872498003734086073385478619600476774918538116533941492403787853806598255951645002102145038014626053233126697135762172702687801831161633692391738169555299355256612766331434558500699219509690622509977533188855232737629720831026655724367528741242847648411996348509249649864198908506382732669321478145
Target link: FactorDB page
Target ID: 1100000000004637717
Target changed: -
Parent query: 2^2614+1
Parent ID: -
Cofactor token: C352
Imported: Jun 03, 2026, 04:30 PM UTC

Raw pmain126 Factorization

(2) 62750388539022414604134123982634397224861. C352

SNFS Polynomial

Polynomial

Degree: 8
Murphy: 2.74e-18
Skew: 0.81228
Selected: Best

n: 8904671635473331905051125024175844245210586093439559903546536664540943011339702216304331296427376803325895001344920360952457243699083640785721798755513387671181863978376347541794522430400698300641378719645244414143530845944164934811939699010743011704257275541141078662365348116154284664814449123615572142352095566897750720746114590136183096696594703089
# 2^2614+1 Aurifeuillian L, difficulty: 393.45, skewness: 0.77
# cost: 1.09995e+23, est. time: 52378782.83 GHz days (not accurate yet!)
# Optimized skew: 0.81228 Murphy: 2.74e-18
skew: 0.81228
c8: 8
c4: -4
c0: 1
Y1: -1
Y0: 11692013098647223345629478661730264157247460343808
type: snfs