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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 #1100000009122012785 2,671 digits created 2026-08-30

Value

5331170194712240976769863628500283984216245461937360983492552324160722334328595146613838746599554017235286300513592247041537149919973424359868374665034605607170485563105211550603959110830573645339508701155641198334985885031733205665389327068602986329933534610661386633978561177137027546006982165147001862770688490448633740238979409505105623822145234240150701799770687521018544935340533104993952700348230152804210264800243151146454796055526939518668340074061553510288197512784960633985488591964236954175133991912509497950578561975244057363432782626576826619907645667146936439330927653852535233469654446052324148145399329443521932419938906817964893441723502604717952198286861118914236295614831506401499483815213507938983024473148080805286332940083603923767708633728050094849493555695715208168357725614968098574629185192858110215388441588349883484373002632492086830917309894599733975776255069196001737972114655915639510077195162830633929511941402173292835024043806917363314428871110538065855086270572338439197366219912081351348958139455302429790439149302483501430450723474847462071405970456643465318664209424537389087523631048061488317914172832280399448053309660381235054399713263772406854235467186462713856262753526099177624508980179844167584930967159328982402378015866836631652503444745764889098261806020522652365332375489424722435232474887446038275397469440069612305813067356478808387229951095080067768695852309097103870478420994244118850905141608824040121853577012942690216996131317847700602210927676257259253039362101161146251719994009109498707874832163927788098766538724221424637812415948876283204158197953430950196784959590146196200723654197251997018045933954620039319416949577466709845965614496737768741315744336517668168674501543006997540148441311821737944639601019591207484796834276995987899967997407174724248380461413670160201087709242245858677713504741158669501869269151185788225640482751605259979704710550295861594729296895313496967814642442315160578758532857022878548343587942091511511380777941625591225485919403935978667655960324746081704855694619288682442280715343596757177650347363049922486730716855250832027812890767658026800191538391720009871143125106621132038315214672919768973841648195010701197844938656186104068682757938172868690102768542739685155256116193361022566180147557748577224433282569502671366012415943723984593906417216980317175566243822892118812039146566605510615939430698040135214654010020602243776092549272158983493704950286383130104122153130086062649399576904911994263983018312494817439379166989515638187250142165533804290035584501065452163554225920222836648482019243247696477330865271576064293533815161451249952886427138577855818874346449
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 35 of the certificate chain of a 3,051-digit prime (309 intermediate primes).

Certified number3,051-digit prime
Certificatedownload
Certificate chainshow step 35 of 309

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122012785 --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":1100000009122012785},"decimal":true,"detail":2}}'