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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 #1100000009053869761 946 digits created 2026-08-07

Value

2080162217990403931243856255721870781465149256464346568959151753108316935144560393889468526646535347056946272465395439411944334248308283095128993129591795358132035691601750340390625982118243968672104511514236150736309361100840921518330918549897851943958416169408841551225393105305162362475547292419611817365261004689251885314564807079336855123405726747348719910255324337607758871659194317095012007552513090960237362202497374941961844462550115570875972199255111043988629838126525119896051307603118793735975134211000920207930809808096151074854295239730214904876360616922546850467836330800982555350477151469112396181950995488222872804141115413809184249669342110355908680804761573035467401863090820815005716486449570102017022230619229878067331306848546227162925906612194444027002420278525450679426046581263200013954388444807123612877704639575712236291567075679820784088881047367747239586857240063650383517125083785591353468242675427365205311259568347
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 55 of the certificate chain of a 1,612-digit prime (125 intermediate primes).

Certified number1,612-digit prime
Certificatedownload
Certificate chainshow step 55 of 125

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053869761 --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":1100000009053869761},"decimal":true,"detail":2}}'