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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 #1100000009057729128 1,588 digits created 2026-08-08

Value

8993364027055442123930914866672639444886316401643195354877620813281193240619104425228519329752391184694957161041619096801625337833938025365863547128280973882922623496777028194695112962757502715915409437894190950278489706190251658211183216814125651068808100541177615376676408575509083582504213242007169624297864588844469383897424930144377592648834678972923294920587524611791242764716283608845659799636064795269861912240659337000466185815759965844866177758942941153736060155184478946905404987485483255646287113802843489578218162489083154801421646235015251443312738839284424052383802485449240384367142855848249508529656166416669801080574556455034344182869521866441077831916039255731998273408092261642648277961523566839196662612093883133095366398679889048549510384995331871130282308923210086790749704297531179311316404204613311196750403824254349103207077491535835567306187552234236796513166479662226701225432919676313956442591831494721620675372550253926092083810448027095581297849916810959110149925398773133678507358370986358415830260278783042309674377739748032870205263558865486036677840221637772034681785752344719369954734557512834810654993642940292947213519468381260198922201116061566405789300430813895151711335101642561483563517596676201731268971914292255943390247268934469424207727257763232900604216322976670781056093312006161358331819073076860712447095598597906976831744877251091976435426345312072273982695293263247392114973163750366376384960681169638734474673777030608400442584069998187784234330200113202053936078874398349660472389441318846777031175323053788932882015683970339190036233
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 7 of the certificate chain of a 1,672-digit prime (139 intermediate primes).

Certified number1,672-digit prime
Certificatedownload
Certificate chainshow step 7 of 139

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057729128 --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":1100000009057729128},"decimal":true,"detail":2}}'