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 #1100000008676078215 1,100 digits created 2026-03-10

Value

20195243886750063484001496010799809478281453607312501754819272023003360861110632207537992085480277180742871201463683530061284877106985458717334077983171321970109862622313466543369192571737285221539604789827870449096363147454307861762421957070125235033443407818344959750589954020145214910986085519561717128159657929277332595413575158728724889104187839574624731576373224821604454160803148754272520757916635760713600263994525794357617460993672149576563169666238991909532113152872021490358829688214934272177754050433434681609325974941041340684946418686247118900658898839533204359396045639108539602128223795842544767756394901302687949916191974881058501926487382824439381843217423157449441136176557508502628900119929712218396558930631974902069411933643916055082641375532083166697102414304938094406988573250621561223973000311503887628101024328734408902126224575712557248516727820749923461605929894580497250009645095947094830502782380336399758336433615494775998636663320593669196876543709279821092490562307724250994578728363322809521537718721489710959897800348779313125378709242971913259831430215068963846573
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 16 of the certificate chain of a 1,242-digit prime (136 intermediate primes).

Certified number1,242-digit prime
Certificatedownload
Certificate chainshow step 16 of 136

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676078215 --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":1100000008676078215},"decimal":true,"detail":2}}'