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BECE Mathematics 2015 Paper

Question : 1

Total: 40

List the members of the set Q = {Prime factors of 30}

Solution:

A prime number is a number that has only two factors: 1 and the number itself.

Finding prime factors

1. Keep on dividing with prime number until you get 1

2. Multiply each of the prime numbers used in the division

Finding prime factors of 30

Prime factors of

30=2 \times 3 \times 5

Set of prime factors of

30=\{2,3,5\}

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