factordbrpc · fdb
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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 #1100000008375789231 1,380 digits created 2025-08-11

Value

628530341104149276721419837178826218982267578583052751767496612895722296770516683833038198841486651565849405611148703058391430671103130139678532846317044379668689898938322078007046652731076711770815649659252654597064739196609857730290129484233984682812455484405915812664454770344062994317038072521520996215068158996795172336567593728831862454013121158600344979562702850058372659448048262227207335171567158841601838151709943259314444554935600301819792053256453851300473700892982007195180414853824256301075223904233735097982821410792596177109604861680992441470405626330134143492367774980419056021264558913352428386640952334049053381850535200488801715268937319823253037639362568275693251056017401179079563263228668327208194773734959388125542862813954388534170069182244250393309337495645622406945232223918203342548476843171565739315640749829643460742332385992585940678340051137229622389960312267308810509087959627414430853607249746174086880416426547206516551086062479703022608915732278867306913795095661879066903482831490629397183717618169202703072734384709557381943065248913373643131296075062662532047166539788961448240375852810943417616081855017381626276665466383116292925541325054251812599696927350451006991529098518228978685048021545855852335438666084078895515677386823613425919078128931051943352234306546138065345222167692237259437113817425520242491985021974106646521758348124667
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 19 of the certificate chain of a 1,562-digit prime (171 intermediate primes).

Certified number1,562-digit prime
Certificatedownload
Certificate chainshow step 19 of 171

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008375789231 --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":1100000008375789231},"decimal":true,"detail":2}}'