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 #1100000008375789387 737 digits created 2025-08-11

Value

15710921917860752843418683697229580673580887759598433580841620905788177694622838467870714559815198420528003505123350493973755280354788672040743513718361543289000288293397054952881500395836575934439801144045680616182350175488880882383721733224794153532602288423526219137218446178909146429674092649377845037099420094576714663029522635359310719089901419066167548667597832997976891773111360640925163663610256906138594085007515659407058359132448963179086510299605103845121057438627807827771327312402398500855860728476860316648432215758728581540248399569509405879506717891209945267685086130174533838928025669736368556901834983703005081133917475846433953192308780093342424023784111676134651041876755578488227982912222853132354107919390436309179
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 85 of the certificate chain of a 1,562-digit prime (171 intermediate primes).

Certified number1,562-digit prime
Certificatedownload
Certificate chainshow step 85 of 171

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008375789387 --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":1100000008375789387},"decimal":true,"detail":2}}'