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 #1100000004984021250 550 digits created 2023-10-26

Value

8005865908805912843569084759700364157857560449391048843105332669900472807379961278492918276315774989617866458407397839924125738153890947991496608796736292173030851814236494831569769804486912313016667196360983130284243977400963941513914821565081774716883997720008212212394612892565839507124175196047829308649457594649795668495204552268430489723797421254535773914780501776196450545168248821325078277575550339089850763114687569298761125238652720398229868495093178787521692963808421441502800157421290037385087702278841045502225651349341032841936421889549
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 1,121-digit prime (166 intermediate primes).

Certified number1,121-digit prime
Certificatedownload
Certificate chainshow step 81 of 166

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000004984021250 --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":1100000004984021250},"decimal":true,"detail":2}}'