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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 #1100000008676370207 1,187 digits created 2026-03-10

Value

14255382963165576533019516176648554498654478610580170969410867843247713142588213358783125325661760349131075742035561133296890770105477947735483175566639514577653215221227002013213613584985354221561631397841239859964875850591946988894285887745591260064792725265459953098976428659485034468313451396498555431272816337119082021022999307001065905628807325589105841487372643082862104077176404801534018935174902949056393135549529176476441875044969113653071429822782576952816962753309634006177005811736860201062773788937121907479164813711362985661621416365962168859574601386143907498931867782736405827650533474828281918555272887346534821188639736806708592157167886431942086298298612809187953417489623534102884707736207272540395560912407842168568238336094204044755017712418322257038485284663882110009545648300181698737086864502343199795464980446368603684533007764418227506054288664092730242626862946714346085957556979268303722053071952400859072550923840243738170661535150944707778339646220432180311981208548876045054438741582463422677305475850480798528571129411482414475042360113408485841479017601565656963549570910846410346870210210500396640598740049904333937760060018986307346465431401804156701
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 26 of the certificate chain of a 1,425-digit prime (153 intermediate primes).

Certified number1,425-digit prime
Certificatedownload
Certificate chainshow step 26 of 153

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676370207 --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":1100000008676370207},"decimal":true,"detail":2}}'