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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 #1100000009058403211 1,020 digits created 2026-08-09

Value

388249768837069799699227818832263616357015956498322203167542161119520264598838662528282377957456522844540007102324622587026901214471534879182106624081485652989908794394676807286219169419110879863805243825277290127567390166442936755758243640772669052008109427747779252953023904859612005153201209315557914531410479155679166424045156119165343925410718154896664566328452997998304623649354224618510519787839244239654955399294031519917060493630764236686183304432216844003642227863329782468307852526403559794670647718441352198263756220692475324690345061546091461517974154098981562132463866776069496479860328954038923993586820612882395838342012090247612740784293330803011856750564249139990720220899737855295801665056972173827040624821847182746688895306107892250291193574713166121039024785281847718375153814645238363329256686984271305457996501704317423698029980504279852908145277522346561644378618287921141444516349816458394639331974980659212248247862295021549218940928035927894642921914026477819310321910404532937009636106563597
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 53 of the certificate chain of a 1,683-digit prime (129 intermediate primes).

Certified number1,683-digit prime
Certificatedownload
Certificate chainshow step 53 of 129

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009058403211 --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":1100000009058403211},"decimal":true,"detail":2}}'