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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 #1100000009047056097 1,155 digits created 2026-08-05

Value

258654490625696009887070532185911028903288422118608762270994410699710160834983855273790797948231765037256481545310639048782933023689597855412047765763957720891188564599560258771170364446215022154916421671064491296148475547498299935330693471774338983604093265854862466111398438242342918651841479258772606631665360931410956928238206442058711448998908364590675900993854566855370659074381897894316740357557785754825676076180220241314766083312580930534027386536553237691213024253887997557022810014034145761700893927835438078564226272315230335836412498657868756322907839277736358211145084557409464670293811837539058087556897108361601244277787820152115513492758938605096513738179873228297122365699777428158095193582233151152533243414562891764697504241999649959818998055833179320297560938347126277928174370599915457546559322938444795006617240476100690584587024893666108145149823451668086348545733839349909445370641281781853591165376221748931179831312995051559707835132474019261000815001669434405070573047735341243169610711997136093342931661894760466941771680776998118566097368849801949203763891251422954825000649692209220713879696476781790681362700127252304630697
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 1,437-digit prime (111 intermediate primes).

Certified number1,437-digit prime
Certificatedownload
Certificate chainshow step 25 of 111

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047056097 --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":1100000009047056097},"decimal":true,"detail":2}}'