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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 #1100000009123228094 2,645 digits created 2026-08-30

Value

38195683126044914254644629256489244434856452067999384627603097958879174100363312051171211078530068314124569715883134257634029535195719363956034052454642058262253351179008640486777253806837011671175905329014005667172631494681780736403906671977200885195442366970676305233443938723375335399159154296319726428989362274738559649808270719580878345076229671986762924772618264852014707512772484610794695168855943615539848758941058655576004394813185268390406504392895337910206209875168053931090156063896528077244521579167641509552508583660766163089996164909356345956648685383870187287977679613742716609560672512976130072861235719321603591980246568012526675783815645289189174122280986929908344420059608664473737358401711936669316455547750393920773394549935287277445052017341093604385744055521509695400755346618644079742955863696964594869072818295562781009815240135169740696492672289343402157272791120982431927681743245757782562566679902260876617019925966004216912708133661354075455167699090182118630102870374845000889297650312815743656293067703480664737527372263963992657869070730660728072683093307199271577874338492135440055287785828846347228257687678389411326276953608445739298148148022636725412166937908790670566067728130121112331219535073382878092732217055696595721201182920473271724288976197735837918074136249605561652756158190018385898811389554724108011764585378250980302117437480030667397445247198158797694624577128582932339743211226176049778674879634973826505597491343870510274672844354201742685711556880828696398364686634954238681535135969330772848336380180064150436728245816413063087688223851483485256692884080740319678217533120345092523578410814355725109551980438135548656066528178975157933350226918488671389600941077747622626955657547074563526239874857472172079270706003941029207205859610791947448930019654984137674126794861590796172533486904620127385867403765385924721284734496872183462463038286124845275991057036687528275031624662053075531586198580202228138209253712408893723549688471660220996304732453649064054551573606846530336247588629971832501258800411017647066908947869634609327169811268253713860981393657505749795755237657464223422674022717257894712126377224130446084750236410526489227641542563847802285112768125710816031196739343581983685937723185612048753703199406608533791806431960642901783207126028026688103256018962924979886312554467375754241843980265941679106768016987710166759023245641740951431750728070926602955208753972660784112783728362461523334655333817826533541471515172276345856092404842414482307415116045788683306021255406915789881204854018654224172559704797195231245170429076135650704420660357728133922671336579623753501
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 3,079-digit prime (311 intermediate primes).

Certified number3,079-digit prime
Certificatedownload
Certificate chainshow step 42 of 311

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123228094 --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":1100000009123228094},"decimal":true,"detail":2}}'