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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 #1100000009041829097 981 digits created 2026-08-03

Value

227661820707850547022156697932517736405317513664327120516522866174684405002164530461037387374883677663951903961780086537820163492950715891645305714857798995007856376836497146519850573325415855934250821524810255847406166149160632165847601807822425613199433773857469834166360820100380812918205280860096587632631529384366877862765829754085503118166871620477184362766333500736728893296688004466312583902324271581542689606786193613817275997119789883079709280396433304363416586222532982099659845352189835468917689686282083668652601669239219952523259841185513317752288995250974570551720032746606863639807040818428122238140627109740952756486871724077802189097660024116698860380552830299925680667485040170267346978458422371218974289279147972952744628583457786802386904293422324820293109932360411070454943069523127094246036370012983346162772660908238337829056288058963048100375487194098035953425748703813973776208012401397528484143034459490054379535671699635940753331885686433727964839785119
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,304-digit prime (109 intermediate primes).

Certified number1,304-digit prime
Certificatedownload
Certificate chainshow step 27 of 109

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009041829097 --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":1100000009041829097},"decimal":true,"detail":2}}'