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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 #1100000009054110573 2,172 digits created 2026-08-07

Value

250446943710244219823390313417066100471544757934295437858781781856783709262007572597774137357731726601647163262031562083902638962191294331686852356227137953448345085319069489259534909746693209761662727302235905328326368453032957820765366103762715050608395384554695975630265288217246571335213496464543256267376643710968655332003055327477741693027801219649708475223833094295229221508549340620294491473850614535324969192783357589058091641058572174254914137717258726060743619491934589669730157405299815965006046692888489933260396440925186878262418578975873274088612183739887128291003817461254988474106364515273857219048302842714481932989035741323518715900644024146474706512190010970988432753198734873207888509793171029337593810401869671858430819862684730720832996849289642509280411299678799748494579752112726823042014851149062116204139092933292908595153409687775996044913782429017896583286766927235790895142405218911976769815693392285309179057852897590672807727706734281238761466175379889750858030129368310899371858934082077045668569526245875616358324461027503460578670928369238392401888818749753821229122482995673661041323543277905895968881019365114294071136349583330183942823944760571891329549844031441599548786664663801601582148889389949488624535849724921620314442075864080979876294994978267933372769784031235508706353714117065131912129356567605038684287744852187064783203692410498246342196632785849853783834600101469183972499955154377575626398560541906035014764833681231220230410554588634979578074318588326067231493007042740800307240917095915970380887269553828544097061070961657479704753711315238469657171730124965671813705499156107690737646793217891279170504798526665947753075403293379629069027728247811648920562886210982843365010125802068780626195658370692979538633980609552908890819711955924852902444863278265359519232727831746631377337792967664673264273491511462954321363657272345174887333410936117974023147993537643728293799629994245537559065793402204033784251235349539626577671314287624324132626235870815558268368810215129035736415427393598303209569253788619627200196508679518239609730577971379810982048235752766713244732712559644409806973693939111556884913285682947
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 2,306-digit prime (182 intermediate primes).

Certified number2,306-digit prime
Certificatedownload
Certificate chainshow step 14 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054110573 --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":1100000009054110573},"decimal":true,"detail":2}}'