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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 #1100000008676553973 1,456 digits created 2026-03-10

Value

2420707252827386476512407449189668675111694292176108029506545901869776800101928201103146143059028400448344911420556889711716717880918104546324804690276221774849454263745109380463146474850274002511123130827972974869909745663230888522244601135374244023785877941195986897274274759969934944468083594428880957839379026986324699462518754039167152741142987313040303043444848595253352887001006291334832454704077561675334755982598447920002823255084390668566862496864407648398672687437549005846208476551794496236425592300895565829097265593852164337736876932796806541892394194249754687945015978084025939264721699338305772625174583433331551845146068420119707886927776098245791538817557628244008474614154866571204052584504052187965317864296229103342383967926451262757564504543784065888940611973017579810177295881414738874354582234173823428100477405969494463960889045937662803744180328439705678823468406474258824058448759590905756692687256458525662622658018315741123435998014159025211257381405390127086876675077076313876871270489423111292721063772684421017185212263259887223766299846117906798796111493170431211194850278221823079941042891148141808398623548521176723654100196531713722655503763598503332696953495048014437227589473573689529069622851043861815550889227032639762454641632504059661296168399633393495989169249919227372343112632105792077100685677346077369126750996517312581216665771669891165256106062539569046042557031653645546224417337520385045314661038062700119
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 2 of the certificate chain of a 1,461-digit prime (163 intermediate primes).

Certified number1,461-digit prime
Certificatedownload
Certificate chainshow step 2 of 163

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008676553973 --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":1100000008676553973},"decimal":true,"detail":2}}'