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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 #1100000009084007863 1,021 digits created 2026-08-14

Value

1262364654412690183760776945919817422804793005654659138339445496168672441785625838517289554688402103119583224616119235913459312653862869991957905363143489486901918735979315392390689115926217754824975573632783941767345136037161842043401158424542877947704463915509369853646773571404804421142017305285529562803776905850903456867810296783065867026273477845993356262537388441375226402927051604626180061172968500059562268847062438253103869024580825964130867050272873938087664753898304944269349372821865244472253920981072295590244415056310239846860377200421548544282227896620597468285307469394796016275815824029943636356017610506212653787640977498578020303146481642313960645396179715362355479200580138689713386574042454495156400759240916081705865640964732675984545681709300375624532129328345392114975020445369606785098067180699096052421988721530482226089918730348926867791078319127563727910974685650722816609838084235914591726924391056113735988412903473661417110518864657433489930990517590403518635094220587295548370853882814657
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 71 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 71 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007863 --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":1100000009084007863},"decimal":true,"detail":2}}'