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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 #1100000009122751005 1,691 digits created 2026-08-30

Value

63828859719368777863529930563116435824828980808764091333449961080339187424505470899178711179501650373626272234912785755951635959922583405638864956652844868542851594457202776842335848792679385607941164963830598759842896223164494412197361943859105181906750468051513726998798068941539566486977799422251276267211916653639811703445705924087436089735042816747598144839134102931760985756459751107290765172533178738024665214152564980496807295178728509369661017669308933150312080651202112674778324396351664704221325377472320963575133080347665545053691619473493354224072263539670875908238383653147603321846295924501447170141078610774873834184793408528522923642121443967542333337987537228517943290823609830437594724664841688825458263706396258012251260958781033921993508474420211279218349109157379043393061013250677948658840760529212253591642202890392047084316068260581361358138104655995935004508628217809275161673047236975842990289183065293741022038742751203502947741380545096199454875310209367915338468187539075417061741370388902494888655963040263565901575186995133471480026927913196124683262513460028962272001094077657134649583580838402684746662270435980846618037463654773451870159873076708171570584619275701395313980014126643551262912061253012955278570764565454140074443148766477082894506139029193937526852670578978678544629052723200823971905364562418827630184436672361425013805668546358206694603499301546661499731169156351070787585158630366965095239514949957489947048627453996360158235895592485686230395857335919182884504120246140519959500314959109634967393240340372137697421112053617746654620701593495547510098141100152082070170059571914464128384216466888021202966613618929785773145628126793389319
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 54 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 54 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122751005 --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":1100000009122751005},"decimal":true,"detail":2}}'