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 #1100000009086009719 923 digits created 2026-08-15

Value

18678280345804713674802649106489327781260679604877780804012117013956561875075686810711813431674222898538061782919082237619479146343956771970969331966736486857815366709962242007304862618822788347709382733937790267732632063972357193081820669490456956235563109108695157272053566281946870073698503708822069603909296385533882269719493628360575237030775282991803709487919834042550765668594711568247254210957195692739781568909391834346717165490925320001372844443050420009372015757493120956387053744055256118970229113653400985680053033461575910517435831767682526575769721415167487754935404598557522850223635679287544218228140992728658274437454411144262865946211650307553422158772595997661340818179401708425011490202922837208055234900200172336675196145476017995005296468441498016502396392196656866946863627973430417629714257430399324396802294562721475368003789635484414852970087438279166855337502320415466773799567831422095540220657
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 86 of the certificate chain of a 1,964-digit prime (154 intermediate primes).

Certified number1,964-digit prime
Certificatedownload
Certificate chainshow step 86 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009086009719 --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":1100000009086009719},"decimal":true,"detail":2}}'