factordbrpc · fdb
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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 #1100000009084007838 1,316 digits created 2026-08-14

Value

12209837851875695639119357213882669435253733977296082090163751472736564180354517314116627910940085934377054807640104080475756829626810000667094405147471162392318146004087866365770431245102398017004128304126961643325821959755526127869794615578491453998933130670225337904050340523551051998300984385727694143484642513650968801280097469721408718990925572027949004096661397797640537359604135743511113756037239786420485904146064409741576689536929410559833784468752310984736186591346250419886334659107448860572836271130946181408470266581210864916947917030363623093068632367750328929820717016581517646064057279223918657429901177866710086885326187372250900372159407702514409575123227852317165549738590071676735230493330438670166597300878857448586951524612408493072714378404584761527836109845118242418434249444392347869141494329584363341677447405551769624774650140488096248914462000133790637903287075966199093491789464063342802142889082650371115386021430107077351100549829916535760097573837680522181445417538348144241524587386895589169634783103320269200448222016024368463731988768106052459596010508227129553782585103724919840507116542389981389758801227919130756186966016398349027424795167683206283149935023259948206328878197391545758227321499832550926784360589411826493065039227550116410879132754981823623421214240102374289823
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 48 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 48 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007838 --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":1100000009084007838},"decimal":true,"detail":2}}'