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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 #1100000009083991515 988 digits created 2026-08-14

Value

2189236334216918725359668581703957095339650581291987997226750898608407535305782741617986339151492364716527303686990802673371432265843813557263530021867781118901589591090671950598039557197053171659712229894684598878925438616541948865234868473008630079518497444566839030592184847031037711562351872028234914221585639602779119277408145745383326656971550038740183127777605578567735204785607281385593489864291407476374612535307585526509509138441777320378168017791719518930083757460479074928244856563020486576874701216799080286034378158190830141400954441208124151368729246962985161653047691591673391437789119212600058161000334046791371257646536948282083693960069037210163153601289777945107611663249384874338928261172611498261524932300051852676486480801312364287113824946772791091268839451963311364078455475339627595945293431879794607009445698147341073636649010514255641501749019339627460149893688284350405174101064216290808908281393468907047513668106773567837282325854452183599878862594208949567
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 80 of the certificate chain of a 1,934-digit prime (150 intermediate primes).

Certified number1,934-digit prime
Certificatedownload
Certificate chainshow step 80 of 150

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009083991515 --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":1100000009083991515},"decimal":true,"detail":2}}'