Math

Explore factors, prime numbers, and other math topics.

Factors of 3

What are the factors of 3? Learn all factors, factor pairs, prime factorization, divisibility rules, and real-life examples explained simply.

Factors

Factors of 4

What are the factors of 4? Explore all factors, factor pairs, prime factorization, perfect squares, divisibility rule, and everyday examples.

Factors

Factors of 5

What are the factors of 5? Discover why 5 is prime, its only factor pair, the easiest divisibility rule in math, and where 5 shows up in everyday life.

Factors

Factors of 6

What are the factors of 6? Learn all four factors, two factor pairs, prime factorization, why 6 is a perfect number, divisibility rule, and real-life examples.

Factors

Factors of 7

What are the factors of 7? Learn why 7 is prime, its one factor pair, prime factorization, the tricky divisibility rule, and why 7 shows up everywhere in real life.

Factors

Factors of 8

What are the factors of 8? Learn all four factors, factor pairs, prime factorization (2³), why 8 is a perfect cube, the last-three-digits divisibility rule, and real-life examples.

Factors

Factors of 9

What are the factors of 9? Learn all three factors, factor pairs, prime factorization (3²), why 9 is a perfect square, the digit-sum divisibility trick, and real-life examples.

Factors

Factors of 10

What are the factors of 10? Learn all four factors, factor pairs, prime factorization (2 × 5), the simplest divisibility rule in math, and why 10 is the base of our number system.

Factors

Factors of 11

What are the factors of 11? Learn why 11 is prime, its one factor pair, prime factorization, the clever alternating digit-sum divisibility rule, and real-life examples.

Factors

Factors of 12

What are the factors of 12? Learn all six factors, three factor pairs, prime factorization (2² × 3), why 12 has more factors than any number before it, and real-life examples.

Factors

Factors of 13

What are the factors of 13? Learn why 13 is prime, its one factor pair, prime factorization, the square root shortcut, the 4× divisibility rule, and real-life examples.

Factors

Factors of 14

What are the factors of 14? Learn all four factors, factor pairs, prime factorization (2 × 7), why 14 is a semiprime, the combined divisibility rule, and real-life examples.

Factors

Factors of 15

What are the factors of 15? Learn all four factors, factor pairs, prime factorization (3 × 5), why 15 is an odd semiprime, combined divisibility rules, and real-life examples.