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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 #1100000009084007846 1,223 digits created 2026-08-14

Value

26686126151328600654729872804924062695155595785651052524380826444141886477450941583419088304320761807281526159593765242250895688186447984276473774827117742492517888821802770579106583687103546804729441442361792770671621076623045566890862575750675373312204784290549609159716291667377483637412167228343748207437404010981455516014277648089866332097150852265995716141771097459249752688274526105964045103279705787651642118498736906137188725351501481455604993001462562779473779279677682803713840558864589085555158059160976169649006869705970193852046873068154030461519206211338470371943465219254618296487391375610552067660630871438878470687413051165646106890490690999577407982763681781243539564306239344367833066268384917692841891637659684556626521005875239116769059127514658185564685436690860961227465265943909622713615717445965417479889554601794420311504962090422353219051884336847402275233373676631536437988759957854882625647875006976606617128197023760395972078308454179763336710275622701821001834872624492762437716917564625343962674290526937584779494027192493546927179526874872695665785227588776949350624907591432242282595999420405475808054452272614614767978004157537977129260138491197933242172606555750296478749135790147667693
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 56 of the certificate chain of a 1,940-digit prime (149 intermediate primes).

Certified number1,940-digit prime
Certificatedownload
Certificate chainshow step 56 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084007846 --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":1100000009084007846},"decimal":true,"detail":2}}'