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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 #1100000008753399318 1,775 digits created 2026-04-14

Value

19412588781498237599766035301095938961185090480595197215581666430353458964450969849985939055812706883764056952985449786428529289218798484522712189083909428971803993221519050877711691720998926693399013503829498158114285154769091380439169912076553013264349452448220590139521358876962646883596678659163444032703875530138960321834198485607583816443813735090371126977281891785532580560867718560918177745705250450910807842705534600546034174578654299692151002160030105716925828497445554409126082228538812872794828095438130955962620324633795252293090959655894354602164072955704663300125688190487978027335895835227147671463251519135090530907995670058204662510112156170178841867559054996129381946397106277716669589015731433030080299542080520125245934202445633316403654615685774297681339372646055030642200820758322086233732709729714428265309172702606540814180644748476437897487369702746573301372724699970932055117517498829725155099979891721291379359055292756236542473236645516909976318996757986487108431346463182413584700317462160900455116017181935445526713307533201896699485911575786513471250957258494990129424190225613063830134620311495719482518615079488332082953791398557069864089673481516341128380262062379200016724847142663034448080675987133210347570543045401621559005400458232653130624786361411704721201354269727184139410977900967232971474075590617189676629718570229465200731193793960424505249027298350361217782023598381255169609414941424985354277292578448472115885629283986648429607673958168149513342093364203677661152294922958343802682421256072489947586560675597240220133204681167698490311606102169279872237183811305792037028046454804211712933512963841457451023061245432761566963352943491621679007804797278638561790394014530392447296472308218027304004790401887073108004121135623
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 83 of the certificate chain of a 2,746-digit prime (208 intermediate primes).

Certified number2,746-digit prime
Certificatedownload
Certificate chainshow step 83 of 208

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008753399318 --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":1100000008753399318},"decimal":true,"detail":2}}'