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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 #1100000009054270205 2,275 digits created 2026-08-07

Value

2715306159716090642736423944794455639124498763669240745391869362052973655833949060020897436089004198775737969543626402789441856857927930005202701618903318231970356526574684075009562565310286375097024062401918528925936451634118303810846504245587894817572402403186441632869907689634370911617381932526880013260148355009247340111324044535741064982209980292267930875119192308379018671477418910924885816404804491525344624148959721844355567799269530403860612581560603437313063332050208580831872837638630042863039693884355143770916236375240260732271174155830547494562115404530094908703330316519284503795223379323035237719331208670884927358151142893318689300399014740580428674013882171387717776396010902286272432461691965703956321458871479386325857808169021295138459339838816426123331238101622662792522100448557701568065105830914614409234501889618843577073578464044808467475863217599731769391623120007205969535792952915885551713929360122149990405622611671369595849007820454925859832802485459240389328885043653640315566955576699680362486923971605108412451723354125956780627385671098917232862096590737789512052187195903310681441642017047160340668936656525090894978794508539170557275400010723492469717526866421504969015807867442555101914846323318745221917579635520468608423276104852431149879405449191775986212395094326648702588700295163959076809916177996796882883920180717819582155396733813443848814126797954056037153490172699488988079070806561764900752753106916746176588091321156407720467627435867699747161158924092090632487275885735608955214320120293850250646288526816056392227864862623227224810382307989921735622829470862572808835843226823531244511013909796549138310714439410748045143561402447981161577237562342492855689703597524253891694010617356414859438869519130278088107739288415942618562231065412772013438735050995214571494630083235800715125401406570472168711498841667729735380849619727815907755973022127482411304366756318225059520437218597232402428141528404805056108735077905589707995825924133106886822515595666773673376165949629516480456002986585207797237454784448438182843133655895617141864255663643934389017446844346646515759710183520839691341138146366563039304984554401165455815661894572705079167555600390879224028940199825403230311165272811620209244698530116630585146082917
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 2,580-digit prime (189 intermediate primes).

Certified number2,580-digit prime
Certificatedownload
Certificate chainshow step 25 of 189

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054270205 --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":1100000009054270205},"decimal":true,"detail":2}}'