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 #1100000009057487772 425 digits created 2026-08-08

Value

81853873056815268079981953170519562336289192522177009170001454349114074860202681819463326350322648947001472697578828072912659655983740413067475295253709560390840733697346501491824132463203218635795593746618057784575357046267792130159196320653485114643349064852439695037644146050315459501381595260868819067203472572332082988857921060420878193947904504475030063092420254844894403970555919576523730519720213626229625299237263379
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 148 of the certificate chain of a 2,354-digit prime (176 intermediate primes).

Certified number2,354-digit prime
Certificatedownload
Certificate chainshow step 148 of 176

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057487772 --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":1100000009057487772},"decimal":true,"detail":2}}'