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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 #1100000009063628776 1,103 digits created 2026-08-09

Value

20675638167341931057492907682218453504121466500860780108256272354438464719018371487886246178680017441730970580307375003051263390202776053685360247197852557442190316205731954658247755688728069717172142800976129480913962104247541229081175655875877991976945486899899763075324029602172290878169901603781051152238939973017964490116404382452508067867762791738549407747881678170486453436999651729812262358844210963176174581480633940940109058280513527507108287984337697381102776268254229384048733516582044775047696700977549022596382534141167070218551666702745339872731977767893834118125003673335081500695316812176465992754546955793806978226565254405108407027168097165493676277049650044446252207220612565007320595131535512936139215715299785872421308946956728683376349918141167287040842422435373670944084580657493614172542425773504682137843073972806000986910191628624063134658208495008778599534412038369493738281756391265502756403710333349185576489616270905714120550916173287486018456905690828610909850806137075396292545203544027819306301893704875332721160447439658198366725149774490170760236887270927193103011487
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 48 of the certificate chain of a 1,702-digit prime (134 intermediate primes).

Certified number1,702-digit prime
Certificatedownload
Certificate chainshow step 48 of 134

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009063628776 --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":1100000009063628776},"decimal":true,"detail":2}}'