6 Put these numbers together to make three factor pairs of the same number: 10 2 14 35 5 7
The first four multiples of 15 are listed. 15 30 45 60 Will the 100th multiple be odd or even? Explain your answer.
7
E
(a) List all the factors for the first five square numbers. Count the number of factors for each square number. (b) Choose 5 non-square numbers. Find the number of factors for each number.
Number of factors
Factors
4 9
16 25
You could record your work in tables like this. What patterns do you notice? Use your results to make a conjecture about the number of factors for square and non-square numbers.
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