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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 #1100000009050519797 1,895 digits created 2026-08-06

Value

13100581586993645738087945304736278417727652338046915179992166637830561659831510622316926980425778307319615868261964115069878962478085425365731072840544083900901548130516433975672438361110556506745183549190038961515069088262761069129219282053628974925638520667112531720889510939329003195239498747251788820977125121331470720733585906516737306683267146275470916825256338606561447571653503952696942869680842576672057658613126350542363323782631616751171069279026271663197809699972955830774172595069251866731575187424934716171228507637909108036304318377140059121847182138676376031828541288757109110587368303690205070096030248633907735021522022682762872367902685386059847462835005518534187629022737576401348314179013432658156733117000498666713654986533301973662308024579857288049961745370080031609003362940251603464276662889382158139923834548059649305805647645398680438023718256190551380613970119649477847238247426569928836379137488135975736269467725506442322577701898693195958586341713469711576275052581706953335706751097279222258442218250478386295782483850977502003230506243409506317982485519974651145178514416504726907218492180329679459297117393598673419804180787786003247127285935043734770547334886168297826361725135247758423143585644147324265465283933327647401490561241204455495803528150301244424630614223390838174594505244220707480633827751150103600346950920152731708393518158087220269994935450592557761577630843622979275715037311091637355244061631916874338628481903690493318757743537576800616127799714433658797578932040925846658052230994236069417594945231753465746500718114220804159948040943954478850086425431758366653401456391143536553543911001465989203203169720038693733828954785701777727091846988940897866341189263543671283284670364458681903450729144528133992431599069161352542371002968298273716333711960865129717784704169038482755408954272342688388922753321516425113637428475836822411849473
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,695-digit prime (196 intermediate primes).

Certified number2,695-digit prime
Certificatedownload
Certificate chainshow step 61 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009050519797 --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":1100000009050519797},"decimal":true,"detail":2}}'