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 #1100000009079970289 1,206 digits created 2026-08-12

Value

681251493928243539791190820413059196708448635623177676319751834479213199358012272051623341664670345428533589092572465694649503492875742100262665323618636089805904619239583165454130331383844030165953196460351650522534307890060492067214378526622355778162768236466367461994382199148488286763003949899338263504588526074096606662013929403882817776787461615263098472591698632824633474927030040673815215979708280475198310281548905433212113479213662695537619061426808902458552128423315643648278637860332435484981592788864857199564454940343684362534462765154647711818587277808616867849942373204647420294113010951774285270963048662456046286022473211098335890625371337396497606919972768069248583427372247371986623904117350345092742724191448526628684628141462622905617287722476951221378101031797327690234936666533719101421554183423437557864877343951255512808679996551078888022710918477996745832865934272718502037269828874919859897392678257308464588667420441725285502086542641214052040601468250325519690070124369040333965856154029924208266381376048093823571412092266554989258399925422737868471319878387869839266433681094885729740849065413402637299547942006136248475464335124611464017200132378996366449688373231435192577
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 74 of the certificate chain of a 2,167-digit prime (155 intermediate primes).

Certified number2,167-digit prime
Certificatedownload
Certificate chainshow step 74 of 155

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009079970289 --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":1100000009079970289},"decimal":true,"detail":2}}'