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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 #1100000009072505251 1,062 digits created 2026-08-11

Value

994044347356784933945128898889408550805519911055206953230973217836175688050363823890227348378558638451583141409996258394289487678084744898806416960155623700400046840573662888322500319373120643791474048022911583794681994843473319407618721840099798053629853473759840695298611613685863942120225901044876761445522226669115939646014032666960989831243077264920998857691746496805896930171477696336789130479892841127845956979667844830308619553396960197371401496339959191298258520897177494409221724505238852443070122332385297697986912860283319492987147747055114260462334953614943204931276287164771739701832430374610612206475289450720000171314459576977990800490459320723158602064131795108228528544972084084909166774601650786175193804112133368650309877575055540591062402883370387863859748533803139871825010003556571786936441991131710064809778228799002557405547610079204509971151791307253462023845228476143296253761677544731799806835834193714109344024389100318847738733026366489695049704019643187752181461191062539473235874132388955076641251035533548457649770860899742491369
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 85 of the certificate chain of a 2,114-digit prime (167 intermediate primes).

Certified number2,114-digit prime
Certificatedownload
Certificate chainshow step 85 of 167

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072505251 --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":1100000009072505251},"decimal":true,"detail":2}}'