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 #1100000009072857685 519 digits created 2026-08-11

Value

660058984203894690668495673438327662638795586664805117226396535296414383569323574479903355349453680246452235129961842329777611214104333002230734362903479414326365821483267908024996297509589626707204115839745261309934247560632577104114963437946842363763860719768580696943937825801662594113039216547929084897468505709641132223778175411658995508635274136070064173418191440635959021492404607713036213973212371966409061629803211003657568083291085323226821168443152193342899333859517148851868248096459805858533717313243288253
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 118 of the certificate chain of a 2,006-digit prime (156 intermediate primes).

Certified number2,006-digit prime
Certificatedownload
Certificate chainshow step 118 of 156

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009072857685 --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":1100000009072857685},"decimal":true,"detail":2}}'