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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 #1100000009123519799 2,536 digits created 2026-08-31

Value

1906283092062680435848237190230853073884212282669465268895989368190879102850087786692989687455367592935024046062450612263272239169359253258915297508588425015869754916221605460037978451673218265255611293231345737683078147921607563264222984512704023595680845126121673001476635326887937216961141941429805174483828508578876587184717067131577062729231894877229451669005916787529743330158373267683080199784415744607448182242858040074637129375411857626951447080704437664538225740649923314548393535974147239187635900750528737680481637512510829172659024435347789964805035370600270354344596994460772041723787904011914006012139392934114564243882005497993080592819963948877594613135418038505499531090105119283120188439009268509552590487477890438227007943963832735668510439586643658760508303593631259304735504010540657857558017753626060910261491135670932313996875021043057864076317583343391305939624920876334645026797090097825383311167873104495563091830143121794634823603830930956831270995460067980693380391910496572445625304600109705717545944464268366816790148501510019502288326533255888705872485365765570340637813969085235152310751012326621694850519174282301640418012257692306235074457480314800014461045660947653882159236870944910177644707019929062790744887080195458042580586225856997014105239930947594853953820817406844722207857853480537540763515963880643140140424610418019547132119158277683768020105155057813736701046313610335965554768358384836047696357653992686172222762787417361574623122699935653626594473171784605046785386617377245823950453557002713649623301135869138272564614415527759279556050514951173837127910992946417371946655218626001135935748248950184427551918576133849444475625115876545833888905048883786022674684062641580754904123794934665176206828888606492439507138209069944739130484480170644599107462393976986466978613796134568491081839602471991987293198719326378222470708832879278912986783020168469631911888239548514098378611172681592684491623943555811105386811807535930900260732370801560340141628858315994744926766169348710101024983684204773987267056118547345685806834150091147605533981065649970216944877354823099333807849791735516804212961045504911236526563131876409889210621525397041793907740830923236372629236404716652048169894677275519789046242537582086816164051771835075324624606914927365829541574589316628662282923397181312995326993663797666466905470362317172117202070434653993157928063944063887796061143423127653116389659413239861139544758116755231120851406981010556973784431524115234421422386147222854708342523609650817261
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 49 of the certificate chain of a 3,062-digit prime (314 intermediate primes).

Certified number3,062-digit prime
Certificatedownload
Certificate chainshow step 49 of 314

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009123519799 --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":1100000009123519799},"decimal":true,"detail":2}}'