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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 #1100000009054271519 1,107 digits created 2026-08-07

Value

518408106424045318692171423978359834806178300629593745526421897610426432108848528228789704142938118396505923583253419296806633372777872546278608810800268696171825544293196078820312054275523961256479148013166901003762128863881295622387055887736660410674120929549531963294746982041902392429623949330801614228135861072234737255782241677909671366464731292600540556893977034704088971024227323200909393764633535438436673459752612706890600816849632189582821169101505652894677920117451105886963365984192893822773299776218293361450692508893400734175754735586200426351441891108187911119891985024644442944545732726077920032294661839999640670066628690700856079432592071962062735805983732584586433082923484913462669048843375855301941652493879891768104145613103888263124466091991455361011334554807998610315992183349434195670805609484877230228156894267156057639448651897903378588415306983591161168085710502586702126227645476932523196300902599903190032616338711159358381844411072052987649706226568353093644328616073900074876714600496153214891789387264630681419175583674358163265070868838552310864381943662764332696467602977
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 112 of the certificate chain of a 2,580-digit prime (189 intermediate primes).

Certified number2,580-digit prime
Certificatedownload
Certificate chainshow step 112 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054271519 --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":1100000009054271519},"decimal":true,"detail":2}}'