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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 #1100000009053848394 1,004 digits created 2026-08-07

Value

13200974393292817737825151252226166078341088407565333279256499797519883897286739612556053507779785037041331232153270676093501460813153887278200861287966846419684571309761350084226373641344519815069254407098231849095880637683975517647570766754741412048420559373391286646081609951864829244790341802249305051780175441070165801468592474578444037603105252148217830232477731095443755508079967415546597392491261756908279814208789922151906800040576477398961706877260577601563671537233618403580734310150353494568480411863542411473837206809266717687159609546417421037399711812485196049636042063092138668177399788274728677448027564191830071630951306910501122114540127096488924475111947032270738392317910165406695724685771333238545786042160714539394402350147749796562552907339762781804485140863361564860051944149078393050886793864712033442323387204503686043381311735830334509582687839885325655603907974333152908064242649628111434593255202901061910478472011772836966807170749435227096993204826757613008752280935354831
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 53 of the certificate chain of a 1,611-digit prime (135 intermediate primes).

Certified number1,611-digit prime
Certificatedownload
Certificate chainshow step 53 of 135

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053848394 --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":1100000009053848394},"decimal":true,"detail":2}}'