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 #1100000008942580913 625 digits created 2026-07-06

Value

2645917435419452442398807120281507268941942200294731614991828184407427512006339875341940526770644033970707579396405781429408769771232562935608572315614105667171470718755045802839362991436350727128020097022516356609340302262865213532303810372934293603605507794805026126047045767238592397807082246236499440660395967684992282670262530954494381578322955882079812034533841595649392175273949731196436152924443349244746546742548564761037541058777970669501803485321137631308678020304551431768106065514061676186094920418777897493473960758376727794622724873918287576822504487135071017560636032116143972953168490213567740069734839809131
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 165 of the certificate chain of a 2,801-digit prime (206 intermediate primes).

Certified number2,801-digit prime
Certificatedownload
Certificate chainshow step 165 of 206

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008942580913 --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":1100000008942580913},"decimal":true,"detail":2}}'