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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 #1100000009043272216 1,068 digits created 2026-08-03

Value

142681596509323899833860235178645127490775881342480238209935900957976227666827993293118212995472653356394302559956365698067361741053491053999618752114288581124830359674640521769860880885292524851770570203877693857849967857468299975213526146200356327744019841306571434260997518411328926046453747813315965411263833811658488971679446973965783409566474460867945655414233423593813463093859595591366082585682387593551190316502163408142349854964995771612022253933222111279387278358950947237115047478775045917327675079840730926912522955801845185651736277052800320915089367253753411453563425454166333031119880646683236709701033859374379037935110912782313631348727251414745830249421021226274417585714876098434604249181882444660827126574312447441546815651761396745393272165069739723050161141505267574730911029076113396807830080316771550745997831599137573119360038000744605086752251995237501869243611183970481983906479985311576680401999430780575067104815618644206958056470092866398206110939777939284452864118703748831248559729981574852313873246063515507320641554262331702455835521
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 29 of the certificate chain of a 1,354-digit prime (118 intermediate primes).

Certified number1,354-digit prime
Certificatedownload
Certificate chainshow step 29 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043272216 --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":1100000009043272216},"decimal":true,"detail":2}}'