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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 #1100000009041828801 1,207 digits created 2026-08-03

Value

4289919366004439779970805074893809034223573549040053117737163387360524343322139526252103122103417593096344051630043676239746847458735802340778719533811839493552211112401198947448032461049663228732235216753534756389204520324685273669236256093217897565006956807526792569404332900919754529806677387750912008458700564404107236655663831387471032409867629523132799412160155849687223134400176361304760533556329354294567294730678347207115272317763244814365237101820682363080907462896346458080920400220271203733316582277012569785380603396516359503869895125784087222028134017227301423739385767436129784233858898356923064570495205842748610333488343866788840747760214226734370567176342916087296535853914155249497703944786005868707695254016433679715468043107266358296069304205056063497249764929665542495866657966798171136892166360668444844738263259997663280292201332495065143742063793374709699388674746335764889116192639271207679791085690188992931749080386538943824993600079121737766399694117556152864809642356170661246307484103091670812160424203174798647721194597457467392685537190083059103153901252056198973165337760826304797744287019292693493109140310985514316897855840004632152370457597014352975510375065494906744953
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 8 of the certificate chain of a 1,304-digit prime (109 intermediate primes).

Certified number1,304-digit prime
Certificatedownload
Certificate chainshow step 8 of 109

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041828801 --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":1100000009041828801},"decimal":true,"detail":2}}'