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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 #1100000009044287943 1,211 digits created 2026-08-04

Value

15793900935219354532378613234924123197955348441118792293725560709950464336348740330244074891251255415267598675679664848293891722461242828012531374870193393876740889961501408745238485255623001264650966585929912238963378449318402639933809472442056000348331815338739951468091781906918669468800264273404339120143839868750046624579009603371258198484034362952848626548727814013092480385949654607400898021455689410899282219331299566406139124607402669666723619286436080761726807937959448128188662871230783019539852365017628350689744692001163656553032675253298449927468997698563732729936170005853330955099840800344128416600119717681898955151939213806780387546702985547167907601480053626134770408540564058598705842688420340015221630450434676506787058154307409463450070282929143308683794471219430447435722686352476813823584106065287649621727830673700103198774382538696328522051824921735930538623098580354246380510280350322869311596092263380260441153743712958229327867092990314410664495295948803333740509795379890640763587702464076177723008888281428394985122939252613663166360288797097813978859226963792267058020852164730416784777740189216164141491137869578482767099192428682397197208451121993586942760582214244527848099231
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,389-digit prime (110 intermediate primes).

Certified number1,389-digit prime
Certificatedownload
Certificate chainshow step 14 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009044287943 --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":1100000009044287943},"decimal":true,"detail":2}}'