Question 4
Question 4a to b - multiple choice question
a
The prime factorisation of 40 is:
4 × 10
8 × 5
2³ × 5
b
The prime factorisation of 54 is:
2 × 27
2 × 3³
6 × 9
c
Which of the following numbers does not have a prime factorisation which is a product of primes 2 and 5?
20
50
60