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 #1100000009028526403 685 digits created 2026-07-31

Value

2830855392545997301018439121063711578191236577298366973947069789873461825484910207254510794826252499818471294965453396184053501952848914641937687445674079951908544203585623536759580150494415585429563350678576439998817654376580717638796382096906549257802908351735605710378713176136128946100342666579944889097016420630782442701756160686533809468365472934335728562383345128211940337157208689511538910661910800846824438631194954689004487906110858617563254290141992997781744623082015684390044218492655520386268148085622501556350847524871147552290657826451348784417532468802421196133431182192273465569392846671175878557510733702054880540310478976931653942860630712187915673931509733206706313
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 1,208-digit prime (110 intermediate primes).

Certified number1,208-digit prime
Certificatedownload
Certificate chainshow step 49 of 110

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028526403 --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":1100000009028526403},"decimal":true,"detail":2}}'