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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 #1100000009043400517 1,070 digits created 2026-08-03

Value

30860456511020422329392435423232293478063270392099701822803172183912959757716836658832143622156273671711081864606553296874834773491112929830671875690322328644508902978008038310864998924758324116924512886135012180570004304293506158632151381174816524034672428961301228485917444727587085131552152982577418417589578102948230551545031569942541472902367959849312441687145866809700295892748166397268926776028304821601565059165147192516119204158711049437207761705662952683125074664719232490039153483999130237725489033424267122710596364127172692950251881342736055308593892950854602006252058876686537746391520272903700927149544713748666213310805658076698729498993344903776256287586855560133927785997066699501461851332678497520126068600966482202206348808567056574848407421276839548632759388781514905271570620497105538147935235770104459803161054647617664266216638846473537393701791859193350279945909796781245519450966379536275907345719085202045388624156927030355249517551183818202901049000383336508657281180554426188449183367183492453065130746774420399771012561563545211165769561077
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 1,359-digit prime (108 intermediate primes).

Certified number1,359-digit prime
Certificatedownload
Certificate chainshow step 26 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043400517 --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":1100000009043400517},"decimal":true,"detail":2}}'