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 #1100000009078839981 722 digits created 2026-08-12

Value

21100061127399971638838339618253608633550961610539289583809472067653021252220088273558702785240654793273861775102267245723765905294403884508381936950761544547775611925926362793136810593220530666296173615397118798158498317601190219598969451294793607242503947356346185261041208744781428503946474164719496415034099246903201790616691261956030892279884734374767482093990837818510009422514889536005894714336582704100226816204577720063181006817135414997375988426311216136180696614773300555540111510204476066544675821306858259430853829409348331343839218156586353566240769388899013551653995094860396187625956862573936130318822808583913191528061101291201069163499619408764781908181001015629269844348758624865128355822366870096004033
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 95 of the certificate chain of a 1,840-digit prime (149 intermediate primes).

Certified number1,840-digit prime
Certificatedownload
Certificate chainshow step 95 of 149

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078839981 --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":1100000009078839981},"decimal":true,"detail":2}}'