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 #1100000009028734549 869 digits created 2026-07-31

Value

55390910451112455284611058869839891823463239583367355220529145387393109102257755049110312588581084101137865936293217163911381690549959405871007165860137102305934290119215254449250573122392708856299161202644019134592628119251588576551364339830251195884394963660337413483932784962569642534068466095805572192483243517504282664648168388542154986009502914051842500520471905293685625425476211427181313360983431775925274784828813820926984378512952316741319517919941983111642121253401503679000253404507748051262889297929778245981425698465567817154681432478054098385378093455468249138889717502974127778714187812137337026791518874573333708091772456674369151996265840220907261120236110686915428658309244465003447117475486972284237814863733548217633793476876060806899876686705167769643764493552312668151115191479558777996838189674826871090228517537250988836924160934804901682930143
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 31 of the certificate chain of a 1,217-digit prime (100 intermediate primes).

Certified number1,217-digit prime
Certificatedownload
Certificate chainshow step 31 of 100

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028734549 --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":1100000009028734549},"decimal":true,"detail":2}}'