# Mathematics / Year 7 / Number and Algebra / Number and place value

Curriculum content descriptions

Investigate index notation and represent whole numbers as products of powers of prime numbers (ACMNA149)

Elaborations
• defining and comparing prime and composite numbers and explaining the difference between them
• applying knowledge of factors to strategies for expressing whole numbers as products of powers of prime factors, such as repeated division by prime factors or creating factor trees
• solving problems involving lowest common multiples and greatest common divisors (highest common factors) for pairs of whole numbers by comparing their prime factorisation
General capabilities
• Numeracy Numeracy
ScOT terms

Indices,  Prime numbers

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