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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 #1100000009042287563 1,222 digits created 2026-08-03

Value

1634698585847860554149541894112817329754963565541992958676526292101986919345823475708162432585383415250867704852386038018039528195905622987206854803393019850934799869172228080060650001263383024902879132332786359472827449504805983788240102151671834592349950391911783265497505467845825331255401310144112473505886835528012325873119047680952030049757014703176956218789584841558373782278785923923129363087838259614717526502662180764008151737617640750992004582605618104250911595030653084939469943698712592268330231022451851985391799014029506284990780491563869087853479544486403186588890088468291221636587027349179699619283226753342122011594174135274132789083960436933921558265349127891040221793616527907236787790639411643836560985629167131568589393562028321768028143647830437597684122774069623344455887617634700034611742352472071063321150210820344328189656779416097860274966031871939788120722296271894914954460080046195009960747456655266062629359614874620041268363810374296733694321637720262504091338055186046414472439902737733860925335183240786259907657772548730697965813370735704285519354775391381626464412441965864775319723792734054287114677807020101072567509359183782649484848160468047226053878882699225301798927455705571821
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 9 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 9 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042287563 --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":1100000009042287563},"decimal":true,"detail":2}}'