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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 #1100000009057729656 1,201 digits created 2026-08-08

Value

5162779750921417071864547525882485015039185888962897856465555563063965078291022309599771529729990347193427396926154024297965280506944136953577309936915229500386250965477809976660599804777326541317788842101014152108600970345639353362153200517658195994173276974238281668652989356367972649800823394759967520125863933216302582512119006700361564440661935675543950456727967570916758851787682696533848590039836797848079475609491250913355693652527922405825251812325429006153768984047355212950978590105332440662222340841827854534676616940027886645953207749851845801840137721299297487124361723642463870459572104934542807968921970824896515632411608550147817575780128368418379871624644159012448789749102738328303700933727203489070804901625669686659452870000864548204501890272226798083137506859261740189936959391103351002593815064909529968310370206510551309656604469908631898332240408631816055672031045447083905842543456395099896641231732662666753397420046254876426903020033001175620060821790259323550645786180565703429290014712685119217351838647009095633799601894555711274448947056363917860199061415911263799034250067386540589319524053701777588885499729159061228533866177722381419957528975977840661351009239627269
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 1,672-digit prime (139 intermediate primes).

Certified number1,672-digit prime
Certificatedownload
Certificate chainshow step 39 of 139

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057729656 --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":1100000009057729656},"decimal":true,"detail":2}}'