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BECE Mathematics 2011 Paper

Question : 1

Total: 40

Solution:

Concept:

A prime factor is a factor that is also a prime number.

Explanation:

First, factorize

12

into its prime factors.

12 = 2 \times 2 \times 3 = 2^2 \times 3

The distinct prime numbers in this factorization are

2

and

3

Note:

1

is not a prime number, so it is not included.

Also,

4

and

6

are not prime numbers.

Therefore, the set of prime factors of

12

\{2, 3\}

Answer:

\{2, 3\}

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