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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 #1100000008766976855 2,042 digits created 2026-04-21

Value

54371342904301624131062885102936599163276062991680230113406154170238884746867147323288231018091824960483948468050499193638808395802149453303587407974503251184238440256809246825992232700653362799804444122738386440795429549489761899802494619470558397617834125302934931745273573556874457591361331746003830983047152315773844056978343044475815329992407161357085157071229629849909812093119423758146101725297707362927291477247576736643966208875377618184862372174599073869383309291207232902912033722289874293543618533853750335968969780548220283492517707567724489079631999617704856205284068620755731169469976248407323700136719880173962984543332471909966004609427466408550601222922059184516970393441411755450513154974838576201716191499844420791348223805697852360995768012602452399858608504744580044259535833048074291820622616781788785596451275660758937818471025036206488500317062004779118221366494001282908330928995353142412868452646827653415989013711175342981990263860739043690056640662264681914483284338087578090844596251139897934687006001766421880292457083954867611675145661763319564698651869217988807540830587169936589908366874202300688588081414040007590159036969868159112632794886086213593473662834491551801613341438233469569289965652058534184779083681756683645075213633598333972509034909396030679255913183858794062786583699341231322003318263138611689467203847249166972178968132568049879265441173006313533878013585674395170021067729732999230312110956210449895806321473566311078752853556173053963321157420411277809494496872469465716654121759315128223002288235325764538624570522488317943919507384078325425869001482413271759526232487145335011949594294742814184425246709520952485985373792169963177413729034149035561183219947176419465635482890903458399452063472974399703812457018030280889530950475437321611194618012852914793559527748832567715373948763773268138033433063635786539432918569161116582455011884974679329789502701837438773412805279758013924657679897296919458001618682623522323731456612208967245962230730445222590384318580541775140419930661437
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 74 of the certificate chain of a 3,124-digit prime (188 intermediate primes).

Certified number3,124-digit prime
Certificatedownload
Certificate chainshow step 74 of 188

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008766976855 --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":1100000008766976855},"decimal":true,"detail":2}}'