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 #1100000009055090872 593 digits created 2026-08-08

Value

17883912613237605280984449192105970635372265607633082406503682445679199469629443559167894135800201430343238531410139209573657789917458297142297005600246260946297953671069964770430221352669559837677581758157661567238387076394404765124596658471995438565897093178671396601132590447646096961924009532930877227382389634737436706149806811435078880293883840064067375713051230226374518408627465944043944923371197583334325271406067485026445174712790276889024476689238142045420103058890935575409428399143381500525720238957830712872003915810830545615738719589300320238163902725693418783049363011147883849
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 157 of the certificate chain of a 2,523-digit prime (197 intermediate primes).

Certified number2,523-digit prime
Certificatedownload
Certificate chainshow step 157 of 197

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055090872 --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":1100000009055090872},"decimal":true,"detail":2}}'