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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 #1100000009053809497 1,008 digits created 2026-08-07

Value

445541915078949214310234787699206090422787809564676736046621183423668583155251164555831958291734968730601345485063488562758077167718665263880633698641669367724885872350212390714602840224810476462448860898831807124787986118384660672632032353237256185505810347613580821643178856409077468355331334015445655540667308132756149943475949602862721576451412280614343200234919054237753959036887913138720137085260786351203777968227812043360160036198893324402239879944428073864552601899280786825051710867523282662562727575533104145518087874744332602589041154022411997587048355702364150408405494478826728482721261850469681741732469300810845922137554672975598729005419429080864700007014658426946609847624136712088910901601249743073329445253602587317003426676485176877167828330368252703090190917878247604699722993395072080491127185304609425279909337456953219119261904996074306593279980879291961685966222492154453681787014187957353521441056954000471814350791058863682553571754039709893769259101561221912902223261953401488317
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 100 of the certificate chain of a 2,205-digit prime (172 intermediate primes).

Certified number2,205-digit prime
Certificatedownload
Certificate chainshow step 100 of 172

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053809497 --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":1100000009053809497},"decimal":true,"detail":2}}'