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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 #1100000009048709953 1,031 digits created 2026-08-05

Value

19035711204132474074609774229268599724251145273424497985605193658468675651917876434432313040981908896454252398430749679020431733218645217545247941606526525438800038020137348303883834133663355636329688450861515182459713766707439412712997153078430566179895826179907462744257240579873201502144133305549920328434902096799927865738926335031526096310501333978582790515469836396928576483351611006358578621516868827885867087978403630958568751338604636769167490580184440903334014743834349001850838823422865391871655346923496072698651714218227434624756187756498336390217298413405765522668024348321934401195985115368354552626681387500796521525974524708159841984003702576300641505610185413698841633014865577846683666436479547095420283132237663879547160030932071059816162609519915890976310578706362371176073076976407102570910086334746143752197413623994494764670759692692566218299208409808801761265995662590855107451117251253374965975034354909139481436998519505226032349205106712666503622880821329765011138986297820836096964600704886986911480613
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 1,502-digit prime (122 intermediate primes).

Certified number1,502-digit prime
Certificatedownload
Certificate chainshow step 42 of 122

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009048709953 --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":1100000009048709953},"decimal":true,"detail":2}}'