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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 #1100000009091972516 1,712 digits created 2026-08-18

Value

70696807266700250110554892960297100112066212584088810001574527961756204425025920085870648709848106873077251377317463525058031441032631276557907774660639292662542733408145632852216941153511027345537046980453878616916119266883033740604246986129710700670707529037565887573296845936646720945338971438387566917581901132233491992004076721939767314748606990547701943266957466454972913732251584576793734193206608141493356135689892322073526392789219048967898300023150525126277452098000377272227643622418489248263501475536707977364164560886755748553488737871037183948981420904445052846152224609744687953186415645244668471732593366029219793867964399944649988457763816802736906495068955187157718621871618096848948361764006686733897117244256477302253269714753024834020889419641492738694323933324053539428107420986811085885733002801434501323453173063558367342167761099635125943984996733333004078069542567999455860530572155715335591264604436609207361716477175109470292745541388985587752184306583690953567011267507395698951068314288459413360129689337104207306877915481118372616648835192446391575895677519322784810639731223830767765977457215173433534444411769646573191844367477315611504969133015987386835757298965360115685671998176744841610546503441896230225857987414094249113244213027110012592705781291006059874977076069274478510581392847830724931486496953806555846815204858886921385427756507964474923846444056762402717105559023258734863752143539884023964375181489405822940614327700537476606593672873670740304333830112051763632959855283423267270858689221096679549182281081813893104192226797153773119084574703869652321591419215354357207903662374039000061568890550511949837406735174853400142037117535333349052942958095708829848809
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 32 of the certificate chain of a 2,091-digit prime (169 intermediate primes).

Certified number2,091-digit prime
Certificatedownload
Certificate chainshow step 32 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091972516 --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":1100000009091972516},"decimal":true,"detail":2}}'