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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 #1100000009055593431 1,157 digits created 2026-08-08

Value

53727082727384625096989868087397058963225364626413117647396027348258207875072262777189874086956362593217928969738167647844803327245355253284377105760126104180881774653508227054713649183628246950122055628332305514055929287589322912813564947012471154232266415527278453967191990968442980732595862153898224239428683936502864430198784298870049491800381062174965800646313490233637800661055851738235234081271313298640503128009660936702660538114239623191120428574870485450512508434390139347702142392095775079325642621763180194814398550008951302955898582221985620582523644940900439230219448174385950374308159349517763648260649309801548386507451967891565759000737085869391438478015527800078609520709523960926132015075526210072684373163453094977063778426325806051128215326257316381617568997786225434354355277543648141547257622136514399880058998461099572259070659893752475953053546272488208332095988100359677513306848550164089002908484329868036473289404416932218933654516696108448371468792778072742581150443739377717838413595852839613279289263926202097652856869671330321183083100542654454084626659622942228652342098851367744908288193690639207039423020076706201826177833
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 40 of the certificate chain of a 1,644-digit prime (131 intermediate primes).

Certified number1,644-digit prime
Certificatedownload
Certificate chainshow step 40 of 131

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055593431 --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":1100000009055593431},"decimal":true,"detail":2}}'