factordbrpc · fdb
Sign in
>
?

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 #1100000009018587266 803 digits created 2026-07-29

Value

15990389644109708440229739719686207803136331873475838659180905287663066691163421552721171789489823060230835847816536740076253129074184937375467659774681033953111866171236823645955484544656443504441728283586956740721588506405432742981061219590626255249370978441510738858976849606436897819384637497965188957542311575073148236709553610529870546899851773577098042551141746325043898939245992831337953775947559395117814623814043849783978960362189185912905510147538565015175190947167960210098762581591430927953327691763332407808833074604477331481790328143773818476530211802334402740683555503392450139193016248001475827910688248825029884663687661006083281565676389501933007356305810522265299980254830105793884901231331520218233211539537427703389083465773704376652815127214733568146867474338561478282711362781969
Permalink
Is factor of

Primality

Certificate chain stepproven prime

Proven as step 24 of the certificate chain of a 1,008-digit prime (91 intermediate primes).

Certified number1,008-digit prime
Certificatedownload
Certificate chainshow step 24 of 91

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009018587266 --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":1100000009018587266},"decimal":true,"detail":2}}'