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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 #1100000009051051708 1,250 digits created 2026-08-06

Value

17585002459543916721261543853504154748503062514530460634911643843498683175537161479788916013421133123960343230514215624231117422842616534941138151278648837004978340110769575704289090524490509316658873100125244508014161912711168615317122309904427620558860058424265978513215699608960932058116651395536530518849118064748493594237048275880741905056907980786263927234111018193403041802816762784556635391319124273346749530794144567026925091880416296546351508604564460129912328352067208223401852647537592907988737330229592624256760221829867682869283908353983349104319304704323073204566000629172665060250268291828516133369685806214550822872995987532848362191808280062450025525501549914138132259663135576761895722306913697570374857853477579851922696909390721086849226077564562229629991135880567116982359305503672830569537569173426180192618248299458165589619783805491085618781989475932296292107996965467642601548262614732244175850793294201211702690521123618674746086591361390880161040701697389511489037654422964108560126814390500465296820330482970781292918618725143615009608942045493542346940168334054846836961308084771696787157601191727497623873746729047904680774896760354217017116369742518043216213773916512575789931762368007724044342071477532596842551551083
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 27 of the certificate chain of a 1,552-digit prime (122 intermediate primes).

Certified number1,552-digit prime
Certificatedownload
Certificate chainshow step 27 of 122

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009051051708 --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":1100000009051051708},"decimal":true,"detail":2}}'