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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 #1100000008766977787 1,209 digits created 2026-04-21

Value

101196820135431786209559660271456592127778971471735710615444982624729248729065378776656583656913665215747930399483628167737951274091417869351915908167848450436855459873089409218770122077685506867984680618209731293481039152425789531166107507424506582643512165448202528828955459213516761612516545328124240882169658524652915058632722765489723028921668167387615098496531011267537195941642505330496145899124904196741829420383753828018579507667857494054791569849760002060753199776958206870899222438137302765951928322269745476328901681541029160904061788883713569599035719990587897077736929083735636255537213017008890929899448270298976191186777481898091708043114615003870373761128238424320548509941272969791927848297574701006923043058923429383437283542774357834684250633998054327021693755867509731014914381564015582449233506537922499773891078333804288836643854808421900351835282780340743338374537422206505211132928470103744113954062721860021863794638146576439181600799557915026599411383516114239919327259266309213164183777231174036298004051170187516546572901957206636215554414339183042679841716831440597375417123871983994287546106447307127603670595261195339717143209679273365972292376550029104412941882056285339911019
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 129 of the certificate chain of a 3,124-digit prime (188 intermediate primes).

Certified number3,124-digit prime
Certificatedownload
Certificate chainshow step 129 of 188

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008766977787 --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":1100000008766977787},"decimal":true,"detail":2}}'