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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 #1100000009088757953 1,205 digits created 2026-08-16

Value

16757403285193396679948475216854215850928570860216146150770418402594551055257012911598413372351490687104460722452705871137755350599884815469818508921812725973536439667463445837651509586683771581641894796393629136818758392651048590480783235084566168519704439937636864885585916457342093677938239335410978568527772361768813615281318523036438623246552787303317729772960069590571178186824973564329745517015137749121134008075921926670939289100897685120535962633021776289744774698702107876880687437321125588443436012646136305617792547722538423479123893881504883704951123250527037790776322865699818491522598140496089004744241242046883603663013947817309079646706101001293165966527323680366786617324565334281000593742883598668337314318221192986184715251980244746946819314660417621106269731782261136427362433265565335610625245762168587280885624748818621734777007237994966597752817303199568543792425372083518355166382588910381063047997802580300848832402859635279709816869828536304683554300962844997456135398826950425633129336115561484025015862781445031977740759121439962710183664555251339252990889940447623506721748699978492358710919957661339471164287152174853067117470452429130100539588626481559315050151455711610367
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 67 of the certificate chain of a 1,975-digit prime (156 intermediate primes).

Certified number1,975-digit prime
Certificatedownload
Certificate chainshow step 67 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009088757953 --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":1100000009088757953},"decimal":true,"detail":2}}'