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 #1100000009047455228 516 digits created 2026-08-05

Value

687290197782579373236899382242414921467697125324248783432801024681917033362054494710253503237710141854934430659505726377190641106040859526210984515228870721684081379095365547201101036516060900903955284659488671845630324400837965809700242317939478932974222475555339055484301531392483195201850335505752912196588088526154048365012450439233584028356668715727449008503975955442562116897006967135590098801963401395796476263716595310729040391081084121177764897070790573553966276934839540584427572974201220404285726894665991
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 81 of the certificate chain of a 1,457-digit prime (118 intermediate primes).

Certified number1,457-digit prime
Certificatedownload
Certificate chainshow step 81 of 118

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009047455228 --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":1100000009047455228},"decimal":true,"detail":2}}'