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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 #1100000009091290108 1,615 digits created 2026-08-18

Value

1333335989423018244914926161735555986671580569217655853644594627917361088553108381669894916839847871582403732237109939205832701561714029566582889036930064506493845844496840235670889216203642041572372877258051411992156998690465024665876801246468891082723938387591270203063398899291244252586041517006908521499163140033075965595846225637569699747683219096206846358959964420474765806220374930285083451260689905517397597763717274380583987494089351204855585887455299606073640042126087185933244913061697159630610789521975673505404639029282613217754008086823627819416437029367082527140586677509127464363708537046749375566498218614178362945450827057298809003346468979289634640676397669177216974049603173998175801464430933910325279525392260941975522745779746222490003028559783844261122354813647357854722691883612773689305411421154552925229163220993490742856104593102378768560555751066416448498593033049877073102857849660161088741434562830077355260242702815059384002253814186488808591694062491557822704920288004294129922993197986975187355862217439248163663062709364235560997855368538633396099064609720706875365091420476225687739390406130262813419301299803272200572171038695287429359840080886138564980182512632710838407216025158177167433501226262372004977928481930842466440689183101081978016002990435048094102598164325045880630840534176349034304157813601407088877995110946158629344480612106953502146380572816632650082581642872525949666167550148192108837913529827907818809872736864535426382668733441431604112346234524688155982982566809511428277872477662368291224684019636324308644660604544669530600554445358477978873680252796433
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 2,095-digit prime (129 intermediate primes).

Certified number2,095-digit prime
Certificatedownload
Certificate chainshow step 31 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009091290108 --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":1100000009091290108},"decimal":true,"detail":2}}'