factordbrpc · fdb
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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 #1100000008676272120 556 digits created 2026-03-10

Value

9219086956214960725420407754725771626425480233297895160344842073479999755621150611585280607991588518274540992871999179591310932555418916578376393088968968891888240300183246852943235451328320570037899025748760542834784700837670683598728787596983610845833538924647730372063394767911255225668866293391145488142897390942677516479531711204209516276615731318669036879223830929201410821068589100189599602637507709872343865389943032474179384807047359322082469936456522515924848057896213280565428244535316427864504007457091950650423195635915995585732814632920218991
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 187 of the certificate chain of a 2,915-digit prime (222 intermediate primes).

Certified number2,915-digit prime
Certificatedownload
Certificate chainshow step 187 of 222

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676272120 --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":1100000008676272120},"decimal":true,"detail":2}}'