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 #1100000009019236450 860 digits created 2026-07-29

Value

42133908502283756472374086203351144514619817907876632105426417157063656441504782074163808686455644477006301324454002682568059634151631663291037802039517344148242445762478391152133095888219866632790367608158113858810571180675645688469523149396916983966387313238382545331013283104109625317799539734974072323900682456939941664032602749342438749864006377926965051808718737714700818758186342686676058771583207560444274488630904625446407590951763061221952580159143947667752946059059088976265492299007465315170769991194411435707887939982649484160080817157642587873578577053722790882090616652821148726586115706393869658012933066019598199103139302373853193437747662488392027295539938256412190884042945990024894801452291390265560153588867460515006651784207044954557041609508408710812399597764726654778798003532129090003260700682648805803264682387173522538652704702778917
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 22 of the certificate chain of a 1,090-digit prime (99 intermediate primes).

Certified number1,090-digit prime
Certificatedownload
Certificate chainshow step 22 of 99

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019236450 --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":1100000009019236450},"decimal":true,"detail":2}}'