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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 #1100000009059039909 1,731 digits created 2026-08-09

Value

897689867057038696867943561991305810438639377409804708266598531553999982027333704993568445905321617399813241521073995389423037708918405881881789150472505608033911173573688478316483596414183672194158258908057355513879562241322631824303073445763332460052791995939602160939158738655925366706258121679855144346853863803802674552769533492989729215409100299766429146121546400679752718832676618499531236058626939749671094002287532640163016766382160058442400394246391576903137056613655633450026169336127709173210796602842413941648641053137842346389319708945820366758587166675502339804298518376236519236129910477756252207987314021964643640475762604157700784240685619056803823298320307761794630255020448958285738532736836555170404246251075693959075887164129921227588026144327189749711248980335015854403341778669900589163751926840351615859643586422165991386400133062703949083238702471442131016621157979132657889834870412616787982093420341284406970572497392079676620167233623015263783396839733856318976279156244582819293524552337509742480787640759457935623715985712724150181303426111250409105473648706727054301893438531734319768737789201613997670532446174491391541553653021971493953348097865322264016705505413929161472580152684115257696284730365020866743217688661084584436816286248912629903638736820773464747523086598891679961255495108093543647571412915921251744216983394924883267804536903505098176638216029622302147205556636595840293385680799578228588954483715529129486225907449486340056115955219072362078902689925690637745647160847230325856387354442084313300423294908605298876306427507827657078695656167839988568537745732677900344311354921578786149089378273640521548859023498097188876129024882408731041411554336477706796904613276544704978647
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 43 of the certificate chain of a 2,260-digit prime (173 intermediate primes).

Certified number2,260-digit prime
Certificatedownload
Certificate chainshow step 43 of 173

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009059039909 --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":1100000009059039909},"decimal":true,"detail":2}}'