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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 #1100000009122751478 984 digits created 2026-08-30

Value

414353624920824665774584809637955609530374447332900166798535769380032850815170082528869342284334398053009800024854996601894177258269454097656418794397116817779481380862989640199210854431607505330133118414280979992660708313231765283549758195113379337974591085166056805113225893467314524475417762971238749492294099619965049291693184461571481209439265142635152043155716837368822030456812227400422950499253087618091321289110976960989877072757313492979627880980410673170271067581582741637401565239360024067264961028918642600559507638823671004440781359384369672571136670982785603720755786193564781351279853190470230613140549481181412114672455251091974697861287707719020130540452210433254797610316487162120316853814146098617914047897255052272100852076962809540240255536168849807628449647447110644167475247107596992901162518422820797822556418609753601697570678993291025928172524288040516885361604922666485457992904157140861493170675879404488723450517444366039592530399033865644521204775900017
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 127 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 127 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122751478 --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":1100000009122751478},"decimal":true,"detail":2}}'