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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 #1100000009048661708 1,043 digits created 2026-08-05

Value

21076002320958012152023318827231569673720162186258416167043739666514612712370373560482903751875212466492096063391366116675536378470155520659058856073075908517963953938949413108671908708019365208533903295873683757837164510969866381837656873362121208810144538522620961436212079151068716942058829275800982813378408108090970422712852262951842412582010132342516488185063594804183143299234098806439788290236050134313390803012472134898308085839726280485368170859705910908804744019145516160946082252709696557736967838106377445848450090057548489285922079945838517602378073116705204118359531211076722011925295824839324005001314995050816128479076573975142897116471197939764647977805055221358860046937192646783682339186270771069520327293392491339286776209269815402303868663559197458655775863821899195041343182338700160529221993898319753248474194557942427236134569082695970597949715541001275064389368554843586920830605742557226593038671650339926296036884548890354921761564830813969593962199722159962151202106391817265813171987285927074722592773667050957853
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 39 of the certificate chain of a 1,499-digit prime (125 intermediate primes).

Certified number1,499-digit prime
Certificatedownload
Certificate chainshow step 39 of 125

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048661708 --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":1100000009048661708},"decimal":true,"detail":2}}'