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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 #1100000008766976852 2,068 digits created 2026-04-21

Value

5280951984850998721270832738716652411239363897107729842909597042052574033168711172063117601360363242368600581978197813983974665636771407521866695304507244312834527872434976069875120226815846819226875890665738986638469845334692465191760357257436861910341286673043956259774333301960273628144123374228590757837073245895198686463113281098624228558126215413853251571563501193395744808379795368924153942088224335193847026398059423648968861982209636013323861771107421706550462627688131568067015685162128248794311098406907105423999190021451219379340390489713343265435663212064846102970394316932084427964571527269918193394927322347166623001768332364582260594423757164816405725984017507419866859642040412507392945352050776085769640444765408062465775180659602579218192882523980961729135891835259337284974315793684978631478478764091572713629682674089638426409457714811925260122867073863338655136186645564928609066077413013922195307819481162369805392974854224519049133307392670083138678944010402480549194889628587228449195104742913717674312260235653396202713961927567787261500901281091806274545800234113695461056434256093538593755829344648447060976290167370411975053087178055293398633576720530844956309348878786072980369223262917877824898757392530413151615184315093640104734299013943412472800876705546563832173792800407538701090102033828434872574885249290728785752570810068124239512523815308815352755088105167317598933548795947297565629641847721764016728211962352227498371091174755888888100031337889279536609364791372117255773220620342298900138594568114461329018406430461141561688887004777476699230059386114334492272370011657186613552619040715331662998481593551281862473091451471538700057988318152018940266216532500183382964916047693265442550449562991828428489988414004478741062080585620694417343368170507276734821127528538601661353560919643749864369572762998767514157827251958448925732567078090045394758895602960403950863215389016162953098345410414232856841731311188979759024570342442854122023991454026622723884736365410140417060092120880581811156413661160483016236092805540028649
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 3,124-digit prime (188 intermediate primes).

Certified number3,124-digit prime
Certificatedownload
Certificate chainshow step 72 of 188

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008766976852 --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":1100000008766976852},"decimal":true,"detail":2}}'