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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 #1100000009056643571 1,129 digits created 2026-08-08

Value

2832435787187265498321957202923095556570648725005280858543328578564754512302017775816884237883538201041086717386556627946206178689764290785353421285921817363485142931363025643902532743326345830888829182765742385314588598427890900387852637671361865432272881542915277774440793487605139684522384018954797231505152749209162982634948211642103054875382005503638488824767791312246884603580383439558335797297343329281608667145947385196219309208054280860861294242276166395468754658352806188585895620699392409519527890117891398549217666928544019830357532074484074382396634086112728089676229870726154439612240332397499880313305267982969547500298121174109562990575148697867796969581571826627414206733086075905448705812488672841529971859974900489238009221447612017019438576297608412476246057689895808950527888505403915000410708975207714089766009121341234310580799255856967983781563349842935436584871018146408703617364964195226297347271946440289775788632286840346139288112057982668668859056180897307852347256420575302216489968864854399304426369031025905295337233004849603183478280387634881843950374885480395729394536245135698878138388557900629
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 114 of the certificate chain of a 2,536-digit prime (201 intermediate primes).

Certified number2,536-digit prime
Certificatedownload
Certificate chainshow step 114 of 201

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056643571 --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":1100000009056643571},"decimal":true,"detail":2}}'