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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009075279643 1,155 digits created 2026-08-11

Value

185901557950248236454884529116381111467871610295803694448227691134506138422380835221958816769306820221340334731115235592723090429659504442114320325225507744577538122868963455484249397216496665607047974182072860862674441453170249816765899516989940186049804441762428914051795195878544452034000822971472395040093729667634818963920039941355991856390148269955195358233000514444164750590249756640247996040973883171553819890022834745405046476514050728210680461980689052991869212493528069451234416005756063059626301585280935093890865154554326521851509484445681873218356845478060077020025528302617033201244610743519662134468833047042705723540690283539758536210771889578227976147710935323227062062656773516023944638557350914093304079633770809121495887821237525504284206157596742617717216667300378212274560300351264010651200331540890328615505136412571417562066899060035648362418731945995828902424743666760013441306124155729663110203863735884601755830795411142402642528772488074272020808748169010937003381697345801107527244672315102051050310471061587241224125858663273761980141272897139938035485879736402413770293331378726497840122538326891812733681383150530426202893
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 119 of the certificate chain of a 2,656-digit prime (204 intermediate primes).

Certified number2,656-digit prime
Certificatedownload
Certificate chainshow step 119 of 204

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075279643 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009075279643},"decimal":true,"detail":2}}'