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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 #1100000009044563925 1,241 digits created 2026-08-04

Value

38191736293396950410515065586994390741086012880179063050564846151326812888630031375593559180096230579088930549786323363735535492697145192463492473817090470692394228778391449331404325977395684560700069108988059443858382173039154046194793698297980768031249420156624465781125938016632980834080190243005744336429218161817268472562447473589222472523130944219359298486106132137276495666299994880162270230204229198390601341154683421853308577235068578515173734661976144233144938299464305744266098570405878221032739784944871089929434165414415528401724054559160034805354562746708468438331763805705265207514286227464619023882493950786283994627237845889267913268568134060324489474270516826252665603511096554800023938158690488460644374116800255755360447365374834756163046398467420801338032854264104021844646074476797441728666756280790792696039507086094507791377816245369496164404235079255993682473619751422763844771199782528117986523836036678823689907924033902210428234090335042689263241340186879730520542299906358368910366047685667345047444557196477436823452275177024626645078050613778615128211524570267638693423670355766655279107293490162634430436628203925311941407097060525040057124950635289056644427115878459736474092237281067739677471252861707133873
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 13 of the certificate chain of a 1,401-digit prime (117 intermediate primes).

Certified number1,401-digit prime
Certificatedownload
Certificate chainshow step 13 of 117

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009044563925 --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":1100000009044563925},"decimal":true,"detail":2}}'