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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 #1100000009043272319 991 digits created 2026-08-03

Value

1349888379467149779530784734051133645358487976178184731457489303974543533597804272937857297095439384221224966052750587838052557731928885093501264863372322517421074867944331748283163144360308148222480592523162408237489325660649195225770616499237542662873037213445159685171755036733859053771496086490367921542801542637903108772744528472812660559092053346437216709557372474098279960850741577570993957400991841067732760008125459637957782699964795196514542509281561027296803918028939473263282044230164215468951426967002928702456134129046947989169158518322158355686818866823931177015763285860950874926198060555999358954111635247971429559428180534231385738163097023579759436373022781100283808533588158401683272964744624665595197500134388982434870929227730772241269082770773902497919140253975674325384483768044661979229362714582675155563248939339922923423549619328220933944979678444631500355664730772612382273599216777122564019271089394579408289181733489497673809428047343498684777657953004055544337
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 36 of the certificate chain of a 1,354-digit prime (118 intermediate primes).

Certified number1,354-digit prime
Certificatedownload
Certificate chainshow step 36 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043272319 --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":1100000009043272319},"decimal":true,"detail":2}}'