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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 #1100000009123228143 2,365 digits created 2026-08-30

Value

1436885357517309247522109589342009425281835079658451535876371602408157115072010692727919774178050249891256852112680813267678483551880852644600355403832035720247184182105262265544939474175435265621388892325141371198166428446144500867274791806236926593164914038596673131290461104625267360616610616463380846229081611013482317204520805499476134587287791133002998543080713115161716456047091843601028239510675062019890908774784285594881924951320569387020450841138618147790606031144403550905087167751364679538911347178102492872262221128125959166447530870562983833095482027787983436749773578752339544877383668337842575908696167016441549068439384899802987992436528887441831808544219067847573057432070507361514257500077097681253106797913347846675147988040669935594246276792635846503943032649036804999036445432449891376483595027862336701442539305169853762952812698746380306638675774622588072598593572372500800046836642404232427493831454406843910751679346925998967673523670425257238718359300750982092866347846896191628341569875190787964362544637427841366723516398679209738634137370509051562590599602502541238198434085768696377036683323404295466827379728570486053440288675755841978483455902344782004957814990373317674409510791473068659981762297681044273062878372973329338742477680240647134091149378961026909494217013234020385144945139432139602455747580036077422495892451704217236163823264095787713285011593161044354694893783989477342185299575339009339894507510487816186943703894081808688662189586948473663763213080570760780023290924603791455439586460151429760734687857497971158424647702648121193945193891879854087845171387612594631928228474844699445283302290627266744509321289979997605593394192305761280318349172218840652902978920609911742082544044988350017511651711152964032385466572782450074404556717650949014756325695055179719799691277123603212597259281345541242616120173994268226379263180878235502508679918497063682024448737769943960495666219076369848324591140467139244977803707637524353678985443276539728923139803839577802731531804578026395916110814980533120457177461602559958182398363070851661458868082473287022930156515572837636309587706491614122906684367235751634538204631272399058693501681035893308068425410062794167385166315882335736955011029827814634012383612374272807015519963774838747841089155789144469384045495382266479994525631110891123923888468091811290479972287
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 67 of the certificate chain of a 3,079-digit prime (311 intermediate primes).

Certified number3,079-digit prime
Certificatedownload
Certificate chainshow step 67 of 311

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123228143 --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":1100000009123228143},"decimal":true,"detail":2}}'