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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 #1100000009040879505 1,093 digits created 2026-08-03

Value

3279188548235691670196053475196005735267668745427792274877504843633948621659933542271654676230186425384598553070866948484468595148970866939468473431758435964998710304178843757763173031749943049899539688349148401877166771918463425743607539074834509688155580353708771528693777567356447142020661260687598246437876048528518759964649750488680280335269058553408266934223726687619070646860108657026536150839526997514496806151861548856369747733175856825684395349871770456191507939236832455787974155467301257436793783041150548278678670463467342954859832327545567565265000692890902678075879415535951514992480407010417424713957718248222477095006120657148950484298851897471122009518440539597670133049865670313750958190109437232086374347236437457905183134402770913227194964482013883679022062027605460863080699662673429951743593803058199448528742367780544175178722067610582274746851137288475646396572131866899999632544176265936950122393791595764697575128139536978531110366708118561647257827566935724334750878185476514028668364710768907956445038888908391494008136647638879024877861109917303854105834143023079
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 20 of the certificate chain of a 1,285-digit prime (104 intermediate primes).

Certified number1,285-digit prime
Certificatedownload
Certificate chainshow step 20 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009040879505 --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":1100000009040879505},"decimal":true,"detail":2}}'