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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 #1100000009061638378 1,189 digits created 2026-08-09

Value

2471374411505418235307122893723329357580342565552655073559792424334713627440010069655256685171315682756096687421779057425018285246027116985404812138980550588834088935137068649736685077338813560111781074413811214609712836697906102441092371091910637816380826494293635750730686304500792254847922488942861715096253420709361634556893147896123348823648702666924133181390948415586289259236019571389920778264890792786920234563867187539018974933546834158961321020121990336581250392500571464750912409419237899085968419450196880080052889676867411495191642578287074881482382619275889706301368510099380194851836173413527407188148317200351750087293111597904901379586031183214246327977798396877691602495730124511381195093508754716988417336647580413768949343738795342036824037289670442790001689488526324346754085001883029755606163527397808117284227528612135775262158021010712810298061772179048128969870988593600039050583158444619738292128978432670065295199589690541675615049879613786931550565256476459632077427098245285338279569778928975538997344241100245521683573045749876099110084701589939108013205010347545792095241664709447338009943410267690621562494475487643703025584669345089434094003603597414762623
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 94 of the certificate chain of a 2,373-digit prime (183 intermediate primes).

Certified number2,373-digit prime
Certificatedownload
Certificate chainshow step 94 of 183

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009061638378 --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":1100000009061638378},"decimal":true,"detail":2}}'