Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Digital root

The digital root (also repeated digital sum) of a natural number in a given radix is the (single digit) value obtained by an iterative process of summing digits, on each iteration using the result from the previous iteration to compute a digit sum. The process continues until a single-digit number is reached. For example, in base 10, the digital root of…

Culture, In popular culture & Formal definition

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Digital root. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

In popular culture

NumerologyNine Hours, Nine Persons, Nine Doors
2 related topics

Formal definition

Fixed pointPreperiodic pointsBase 12Base 10
4 related topics

Direct formulas

OEISWeighted sumsBase 6Floor function
4 related topics

Additive persistence

Additive persistenceLogarithmIterated logarithm
3 related topics

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Formal definition

Direct formulas

Additive persistence

Programming example

  • Java Java (programming language)

In popular culture

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Digital root

Nodes25
Edges24
Triples67
Avg. degree1.92
Density0.08
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Digital root

Top relations

related to References · 40
Digital root → Abstract Algebra, An Introduction, Averbach, Bonnie, Cambridge, Chein, Courier Dover Publications, Coxeter, CreateSpace Publications, CUP Archive, Dover Books, Dover Publications, Dover Recreational Mathematics, Essays, February, Ghannam, Google Books, Hall, ISBN, ISSN
related to In popular culture · 5
Digital root → Digital, Nine Doors, Nine Hours, Nine Persons, Western
related to Using the floor function · 5
Digital root → For, If, It, Likewise, With
related to External links · 4
Digital root → Eric, MathWorld, MS ExcelWeisstein, Patterns
related to Example · 3
Digital root → In, Now, This
related to Properties · 3
Digital root → Idempotence, Let, Then
is a · 2
Digital root → single digit, value modulo
related to Additive persistence · 2
Digital root → For, The
related to Programming example · 2
Digital root → Java, The
see also · 1
Digital root → Arithmetic

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

displaystyle digital root number base digit 10 sum digits additive b-1 persistence process example numbers books natural value dr using

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Digital rootis avalue modulo0.90text
Digital rootis asingle digit0.90text
Digital rootrelated to Additive persistenceThe0.60section
Digital rootrelated to Additive persistenceFor0.60section
Digital rootrelated to ExampleIn0.60section
Digital rootrelated to ExampleThis0.60section
Digital rootrelated to ExampleNow0.60section
Digital rootrelated to External linksPatterns0.60section
Digital rootrelated to External linksMS ExcelWeisstein0.60section
Digital rootrelated to External linksEric0.60section
Digital rootrelated to External linksMathWorld0.60section
Digital rootrelated to In popular cultureDigital0.60section

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.