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 #1100000009019292977 872 digits created 2026-07-29

Value

28141467947361279113128072463822060938933679876306330841804676677630810255814077743789051283081643343577716372936554251690517798412744571952087091661987830464245588076238950633492290826916023073972081627157473264072102699383142839212107782776668145280714668330126754745952886977456250536766309352029453716440864101195942289157721142523058289317392903368014412395466583159196601344435695561044254301525256192517002834494807169281137076131001737402529516016766208008691115474323116548935034379101629636629174966556295673372991154157342977120695318127593889937136484838770696633480025005240937124149915333481181016202679922646866682363328875615831785090647974161337393394164768419313799147391171800849985077569835444220237931212927418711106758492819241959473365873929723318140616506002549585593483766039241692827741729189816011696642673216219566160591292135821451980867284949
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 18 of the certificate chain of a 1,092-digit prime (87 intermediate primes).

Certified number1,092-digit prime
Certificatedownload
Certificate chainshow step 18 of 87

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009019292977 --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":1100000009019292977},"decimal":true,"detail":2}}'