Curriculum placement
Grade 4. This describes the skill, not a learner estimate.
Factors, multiples, primes, and composites
Identify factor pairs multiples primes and composites
Problem types
- Select every prime number or factor
- Use divisibility rules
- Prime, composite or neither
- Find the other factor
- Select every factor
- Select the multiples
- List every factor pair
- Choose the complete factor-pair list
Builds on
Leads to
- Greatest common factor and least common multiple
- Rational exponents and radicals
- Generating equivalent fractions · See it applied
Dividing the numerator and denominator by a common factor gives an equivalent fraction in lower terms.
- Whole-number powers · Extend the idea
A prime that repeats in a factorization can be written as a power. The exponent counts how many times that prime is multiplied.
Related skills
- Odd and even numbers · Related idea
An even positive whole number has 2 as a factor: it can be written as 2 times another whole number.
- Missing factors and quotients · Shared foundations
- Equal multiplication and division equations · Shared foundations
- Dividing by a one-digit number · Shared foundations
Open the interactive map to explore lessons and skill connections.