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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 #1100000009053807663 2,050 digits created 2026-08-07

Value

1370231588368723181855251942338526309462366856902252098421022133081713908235436436415375503511870790074934561238742032737668942808655326862516311607770507266786120933431239247679045132797862450495272988789821018560806083855646856065421604618238432389268501422129027251380840660458473826171743650667171625291331590691206652731838707069810325015531496532591017019612825689534821662005669336600164094563335380057382588983845365537110400986326569589921930163642408570944774464455107947361293701517180239113047913479338743551909299946639558761200616901695679873349980932173460283961624983801655440242847693279883220765485254972847176113487698375917697007421815751936714848965603776908384801970147239370127296365791609346836456856400611510467701846727259280570442263537652264524245265884614792422880582431557405943008169834120168596342554064546072758257459603308868773458995524944097456779393778008317401073345428688307885154340407799201073975090170742476868430046952441909826386656690063723978101876971345369997470756141027984718559889001500424385030565449573534030696970946994651780343519282493861264219536911921496341921960021318728242048093373789916336955994779755853588735406410855645378301454247302119502169724129795897722532318950004059339788264121533805508525228663602498941277006103394050554667437258421035373733853513591743467040669566905851918033402389575557515378612907348419527504745100669462319817553093658355628968583216225546608514009080854019071307365587471094667202812049314366018801986022856012556814034860497011321300689031826467735589233231142072964780673662301703771478042721237801874922311826603438860768763538271746094371103954554273300078693520615022080085168950841105935784687007221845018787096789865038302777701064301019329772464565786362526303941824894738719677409734736366011716854384259123193562299433494471480161797741708895224428767102115916212865219550145431877685684505795840171518753339242799185719835265886466491686828893971532923698022161627728275145164519231040020375963160674642752748899770962496917206513450323630043
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 2,205-digit prime (172 intermediate primes).

Certified number2,205-digit prime
Certificatedownload
Certificate chainshow step 14 of 172

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053807663 --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":1100000009053807663},"decimal":true,"detail":2}}'