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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 #1100000008676370196 1,272 digits created 2026-03-10

Value

878448214020741319181594377353173594861901185966395252596017127776983019062475307824095206783991997025800675095193509317237531479300697118803162403196805727337147458542145145800536366377376955881669734494056232492434257238213782049596406531342342136429850103094623231364136442676922238824632115089178813829590245856468819551735872194047876058535970107470411527895709068654566931013512046689845405563660576880160477916228328254749587143325638283999285596148006834668575652500286466033964348304791483552950231544900075625327382184451435528830946736673023182320108505859012871106698652598834602630789003942252601767271346890798090581932597034578520015313757502437989805099135291098236225514108400140645973391044831606061257729246689574933802312225867815034628663357310309028648479407085137730693313523718280728554074240197565058285469421063704290444950099848819401650895780609085310467996308988997629898661965137720259805965809203556435288787996198310517779063058270455256770376788234434810438282867684349624061277246566201476919202727475934837739134889825462365918391419846563412805579339122891523223345718938297502213572495484490772002062531420420682286698307334117518263680403980493210705023578095728645736708235920345082886421137343721445954823932023706644075044788873737
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 17 of the certificate chain of a 1,425-digit prime (153 intermediate primes).

Certified number1,425-digit prime
Certificatedownload
Certificate chainshow step 17 of 153

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676370196 --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":1100000008676370196},"decimal":true,"detail":2}}'