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 #1100000008678210749 731 digits created 2026-03-11

Value

20784518807587886091342557208630563112082922070495180740452377538922553545245083278746149723135506486624483523498784519719364951647963769393897364093830209043875349597517357846840487880515745722809104360437057606657660016907602031786053672187784859034296955744787854389588981462639580694944222460065870182973362042098128763182123436589525793692848470868461325415825198534816066639137808015920608713932322561695207450229755685419024390961408315445496905151132287610054898602574980044226861704091702693921435514496288921631752560077092446612612011483943647760665869717207362032239601798200510753920083747716298997326152289848434036588277453225890206461137003586240508944870858006542719401847396928554602251129893666004076401171856201
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 106 of the certificate chain of a 1,843-digit prime (185 intermediate primes).

Certified number1,843-digit prime
Certificatedownload
Certificate chainshow step 106 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008678210749 --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":1100000008678210749},"decimal":true,"detail":2}}'