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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 #1100000009079759272 1,127 digits created 2026-08-12

Value

28644712807559535277654427629815653542211823162861229355841218833785581375058236120626931961665265998099086554752844100894033329637644523394034524374875265789343992132222409501604115963387984225509554805650278595643535364954825928338266034173223321936116531203125778540363909623860498486979469118183098142459897194984600311768214239505095726400880257492382555196415329360291420483263691218837095226404347335019257493626173360488957244531742517652041351282551445842354433535549447921152981370918663074662706255127849214330227494585431378547167984175760590489329722787397395998192334993509797042950111914634943409831331978284194322603799432773973509708683928314646957433539590257280917006489574709110710092277692636264639812140531208238900113635739379458557611674381342721035157130827243709188958260174641617520730280168538420804568847762981263254595579113316195962105280413864552529565424295416919768522034122793451069710043686552727917540072324939225568337250530068208606440307126212325187365710587363750098021870921906550288946275580680121289907183666220971074381723197450036673606287006693279781966834821987491698859611584009
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 1,853-digit prime (150 intermediate primes).

Certified number1,853-digit prime
Certificatedownload
Certificate chainshow step 60 of 150

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079759272 --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":1100000009079759272},"decimal":true,"detail":2}}'