Topic

Number Theory & Patterns

Primes, factors, patterns, and the playful side of numbers.

7 units·4 classes covered·7 practice-ready

Why this matters

Why is

6 = 1+2+3

AND

6 = 1\times 2\times 3

? Numbers have secrets — and this strand is where you learn to hunt them.

Encryption on your phone, the barcode on your milk carton, the compression of every WhatsApp photo — all rest on prime numbers and modular arithmetic. Number theory is the most pure and the most applied maths at the same time.

The story arc

Class 6Patterns, primes, and the joy of number play.
Class 7HCF, LCM, and finding common ground.
Class 8Digit puzzles, divisibility magic.
Class 9Algorithms — including Euclid's ancient GCD trick.

Topic-wise practice paper

Mixed practice — all classes, one paper

15 hand-picked questions spanning every class where this topic appears. Auto-scores with hint ladder + AI Tutor when you're stuck.

Class 6

3 units

Unit 1

Patterns in Mathematics

Discover number and shape patterns, sequences, and the reasoning behind them.

Practice ready

Unit 3

Number Play

Counting, place value, comparisons, and mental strategies for large numbers.

Practice ready

Unit 5

Prime Time

Factors, multiples, primes, composites, HCF and LCM.

Practice ready

Class 7

2 units

Unit 6

Number Play

Divisibility rules and number puzzles.

Practice ready

Unit 11

Finding Common Ground

Highest common factors, lowest common multiples, and applications.

Practice ready

Class 8

1 unit

Unit 5

Number Play

Number puzzles, divisibility, and digit patterns.

Practice ready

Class 9

1 unit

Unit 11

The World of Algorithms

An algorithm is a step-by-step recipe. Explore ancient and modern algorithms for arithmetic and number theory.

Practice ready