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ACARA AC9M7N02, Primes and exponent notation

Year 7 ยท Number

Write natural numbers as products of powers of their prime factors using exponent (index) notation.

Below are free printable maths worksheets that support AC9M7N02. Print them as PDFs, or generate a fresh one. Every maths answer key is computed in code, so it is never wrong.

Teaching guide

What students learn

Write natural numbers as products of powers of their prime factors using exponent (index) notation.

How to teach it

Test whether a number has exactly two factors (prime) or more (composite) using arrays. Learn that 1 is neither.

Worked example
Is 37 prime or composite?
Answer: prime

Generated and checked in code, so it is correct.

Watch out for

Calling 1 prime, and assuming all odd numbers are prime (9, 15).

Prime & Composite worksheets

All prime & composite worksheets โ†’
Make a worksheet for AC9M7N02
More Year 7 Number codes: AC9M7N01 ยท AC9M7N03 ยท AC9M7N04 ยท AC9M7N05 ยท AC9M7N06 ยท AC9M7N07 ยท AC9M7N08 ยท AC9M7N09
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See australiancurriculum.edu.au.