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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 #1100000009056977920 1,713 digits created 2026-08-08

Value

163806352988785002916167718781666079765853725159961635328130832237819969972238579204779772395451937202609835400245444897252688263617289308405447074800976597419920626628069610398603218811286804083533497490721191247231970779694018654858137341042522691173455865675799153094417473240608878237265663393753395136388021252344620204887964635094036331208982488670422107789175560923048912689345977655446949365394698510750035701956554729721664510229297950532028326950928768211314210793523190977677171641003842308629170810214711555715709582245514636061749670872693399335047343393796080448854945444321259282285303242284284718156255827517221215710922783480397049259074093342539421584232686794042274586322655941814250373051231433007581496853889613585286239884535607742484879436288342728800346552407823055025520342428181142120348583773875933818515388713400014962597607898685569169722154725176689103210005538978238297567849372797232513052905033410150569530073496881831918781933614806930568004945372905410377699938016256558362316983259409955536350904341277210716644002029020310887490766736777360647730913762958928801956407852464446671324078081240374571929100441663880777754607436100747958424337645831735179017266137021137476690841250723039006169353951115733238239111956017478433624999713425572417798348004566081818330930459777895000309079432779452162973040504710512363647521978767659024148182334308786773214376664962421882918096583475721961672253395627840645161181134200780460166421163227766426736436175784393673505888204382978498307507604526885750021548749436603029797051459551597616076793534811322811382837114263193499241275651592363410088711391911007585315669820498843925735942947345523464360689017846221191579878587282828295739
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 61 of the certificate chain of a 2,439-digit prime (196 intermediate primes).

Certified number2,439-digit prime
Certificatedownload
Certificate chainshow step 61 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009056977920 --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":1100000009056977920},"decimal":true,"detail":2}}'