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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 #1100000009042190595 1,090 digits created 2026-08-03

Value

5256493571751035477908064199409770318954679521275125008143434353392869159009275206985989276736131432497757687780835958547526555445150056893927731190993805039289455771557052984470378919514755401344128774485266561444883524257118118652023179055625835947782458019972643396852778014937326521619714651155125374219970689657874450379915382211316813894016954871453724935976234886930588323705070079894604591172242578255637198320885771574582760921446555562879337350380199235662160532057751983407706312970718723228159912826766267693762567838833765992683382780072307415125685058632136205724357572536675968912466483329637766044072092106853517544622371429341465061271382708342416526138328718154295368235028654072120824027523192452653710659011280347841163043224252297033162924750157939892292402165208283427576418038003809722165916980708022944762225008727388253350340104445489129850127967312824249898767407110600154813107149814478447982291833335166638896326446912532535613957781174326813070625289193365644171245667195494168888722247910492911047073279275423065029478330240991156506277918104321474085823388557
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 21 of the certificate chain of a 1,311-digit prime (110 intermediate primes).

Certified number1,311-digit prime
Certificatedownload
Certificate chainshow step 21 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042190595 --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":1100000009042190595},"decimal":true,"detail":2}}'