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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 #1100000009040166762 883 digits created 2026-08-02

Value

4355227792915906825242084928626738244908542710342454484899970685513697670476523412258753551093836585233339000813224087200000671025231416243566549260513472429757624582060399115229529980740160503879393475413667875589594241497939664121150610397923054067046537346372169218029008525592824174177564343828496198283079304034567445777729878834901196443678161440592840762819997177626217038223554518648052021025595563427174238768123690832907508128135895524436980526508317510809233436360051209057515529059470493488407568791087253148768136642631582225171592792144290942289389739522345313891151556047927153873630877081691591225896354906984980438438953399303884189649736340121770075042119581072560826461346343535277916324220138431248739330553092813272195216761437163305301926163038711287094047032576906738031010833889090746850525123753774764131631705037174662281744467988515709772993635002190500497
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,258-digit prime (99 intermediate primes).

Certified number1,258-digit prime
Certificatedownload
Certificate chainshow step 31 of 99

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040166762 --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":1100000009040166762},"decimal":true,"detail":2}}'