AC9M7N02Year 7NumberPractised on site

AC9M7N02 — Year 7 Number

Official Curriculum Content Description:

represent natural numbers as products of powers of prime numbers using exponent notation

Worked Examples (1)

Example 1Prime Factor Decomposition

Write

57

as a product of prime factors.

Common mistake: Including non-prime numbers (like

4

6

) in the factor product.

Correct Answer:

3 \times 19

Worked Solution:

Divide

57

repeatedly by prime numbers (

2, 3, 5, \dots

) using a factor tree or division ladder to get

3 \times 19

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