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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 #1100000009042287715 1,057 digits created 2026-08-03

Value

2103476345483328018351509836375876923631984591994890305177369448121037401387664047355760275629306140725056933088348847602374105710407957317191855816055460720421873888280789777063778043235360748772686600525130796373536667707287656276776476540868542811899446056671413496524076037327104254577231927388102665218574940477878902898383265356194389473927332875608057670445084734984476019560740767848652576841768743284271083066323956246091100152237589431634544304875244023279343360383854280655591374467542038009119548246532706130279461613191818346878845022444156876022741992380697183327736099221121076046506710639279029924122191759534435044898163003507089716469972207200364037620250836907065352555173593382481279009182944794116069886472624093684477419240752371615977918753723237836921353093305195780280123641424607801173958914520830540058353581512623364932232203205431194563191323635463143766589925572892787182816831110133544915124346738474117971730348987694661152315213926811559693163144833375608641330306953935824640902121474937269214923520780032233250289098155837
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 1,315-digit prime (124 intermediate primes).

Certified number1,315-digit prime
Certificatedownload
Certificate chainshow step 23 of 124

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042287715 --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":1100000009042287715},"decimal":true,"detail":2}}'