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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 #1100000009043272200 1,078 digits created 2026-08-03

Value

1688676877249783696367702694394137034608717017955060813869197022825820043534049743390837231925035489463455411986147733188160578728051029072450079519904050792019738005974583586108606440578155471242723553397955603659309392732485221859164301474368614668000919403707061046352507949563202911857249011860868627937750454926911591490124415189459642792006160993175704306154712946306468519838558658938566410283193167386401983656224798540632365214646279618997467839454925376735415385541065021752821292199433830975104456059081735586016269994279742510963480798955229850057841199519799143665870279000796917941120760827334563414709329993122970711671556965500143841775644545983615601455924074437801706860682530466145288720523836845381943462882848087193525634530628246544884154243280969238646233641317781350037670973982573844488606251309476708760343319446716228387037769267804170970010496236363849568405830262594617184231121857787980015740731456548555590350456554347461139949249119452662810534442584935417024930192175614215837103188978290357803627123352694595671096856405475158701873290597438949
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 1,354-digit prime (118 intermediate primes).

Certified number1,354-digit prime
Certificatedownload
Certificate chainshow step 28 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043272200 --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":1100000009043272200},"decimal":true,"detail":2}}'