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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 #1100000009047480766 1,220 digits created 2026-08-05

Value

20079128040842774337161838314634635813270077833862128783709309074091762248686690640434490345481031754598257406806448862388347092291616275197999476466473723826198462084478167196994429892466542301874652158339810108058932601757703754395287676534554071582676752942855077000574856705881026391776381119900289551729261035208719340815532316140026660443748871354342055910256209707843221068383795666328934402205940046398838506223792429858462639056092238043634663004194351777203306709495768660444176674422607012547239380617275993380868297486167150827901322022859271263929359685870348852982545790854297236989768142882811676610023503673415467221858391122172831320183955643317096778008835699404786290108522386359263966226976080153730765606269559426631202776671898845073110497187527945249974045166042603972478779158496577358947592371721530621386182039796431841707953165065212263702133692439442434956716600450449140903076560576651889118621172184890821853721490203692705346138172594946690048621812473502151363042757074891412213591428192649613472993540217449216139749549134545512158517830882708643023688706674925003796870294251183678106492792092892252977196005813832112386167161791070429941011670855992352975672819797062074898650783449039
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 1,459-digit prime (116 intermediate primes).

Certified number1,459-digit prime
Certificatedownload
Certificate chainshow step 23 of 116

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047480766 --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":1100000009047480766},"decimal":true,"detail":2}}'