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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 #1100000009028283783 1,156 digits created 2026-07-31

Value

2555691150875391606556660217881162336549785810364521345180977264083794516845188610036648250863731127069633589133479164734275727510085064692271940263439033053785656021454001358349762723225019945147105843925261403587393889655439783913206702519183352126960507639704644019517727815882414611054031115792155408593743002319893359146740278317924875171045618468064908763206256842162898086913352890782429852001207504312831203061058673923470334810149297948972515343199698564206012294970653461210561155435201418357531606692599203858375540965734660657704026637472281231386046570595422466284646079771562163586445588400393568872247694732180520684542918316715310436431050933251194565687415270275169772287576428378243982413923725743751522607360739732940603866360405260533920349202507053285183062962088993732673292443128747829621459959797539905586955384461473723371821634020231813643488336081367714000146424962242072890659787105208001805392740642100929341276882016021041176057070353276757890944053591181837664376850065827258677395143307914886687823765605893022534679030808263410794449225988960151756792840971602982688846302983126037506972115605294874556256865117790434883123
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 5 of the certificate chain of a 1,201-digit prime (100 intermediate primes).

Certified number1,201-digit prime
Certificatedownload
Certificate chainshow step 5 of 100

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028283783 --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":1100000009028283783},"decimal":true,"detail":2}}'