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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 #1100000009078253599 1,105 digits created 2026-08-12

Value

4142681198360910458743236519361500419109340086327499565649798789536437182660646422233818915319137929294348707813059639471759359544717950849885357652320399188192625652071296775198910060942433371118875693401904036781119949705381348448375801915994311069843700383085256811624553873827377654890431966944877599830230900837661648404389043209702845118606620699859253720132236498590827326596522298683705629356264967302197145001692176057741924248226298719558906478937327951809024267552402821443832050484912560987019035531987293241903622488196567289665541334211497592980573395882547478625163476457692682146287067744011551224846665880563539486970906323008248396766376840730056264769463727886297017389048688396625114680373163867811565607911670017773501107986159759866596726218684351326172351808136026336223682269334613314265914248808894038225850211338445504741005791992715506844904431755241901429463715959391329912668406675280579669844872692012038527950834086535193778054413923925203187783754250145465269460485049588768371697201739854446901560670748713812885145844441403549153891585800239214166190719238689553351569801
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 88 of the certificate chain of a 2,147-digit prime (168 intermediate primes).

Certified number2,147-digit prime
Certificatedownload
Certificate chainshow step 88 of 168

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009078253599 --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":1100000009078253599},"decimal":true,"detail":2}}'