factordbrpc · fdb
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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 #1100000009084003309 1,118 digits created 2026-08-14

Value

21877983078970876846504948117501592161820724153869453685779813729459314317482490163298059432681400036485455877179628553411148299442605823593733425602771947328829813823502354322379086608772816729055246024550237028815872390737749462868149174013838806104842476478948595184006645781576758135547197606305794786200148290772090622851221607123455137743652745794436104880458494360101994233211535633339921177639489293476256241463600966100783288187170688869344720763854788277980889799858238519203066659950144517076202735747531820045782775378408365740516566348762637657447785626758276801993301441099067085446099311592860988115309299935416432815428195671264449173205325266713946243548629711488337729237744420053200863971677548416040577474754344808555037462431204439193692414018583519031010391682189960893170888104680467204040847334762408497032127251886320152811491375798255658656044620945240337481967023664094830677357228422953244919858057377944833872554323734138756244162961197177974999059012556481122887778427168855870369163274234114736266165298871247635246482069743769764632630099009480261488077241267491534533463879087444796281
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 66 of the certificate chain of a 1,939-digit prime (150 intermediate primes).

Certified number1,939-digit prime
Certificatedownload
Certificate chainshow step 66 of 150

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009084003309 --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":1100000009084003309},"decimal":true,"detail":2}}'