WEEK FIVE

SUBJECT: MATHEMATICS

CLASS: PRIMARY 4

TERM: 2^ND TERM

HIGHEST COMMON FACTOR (HCF)

The product of 2 and 3 is; 2 x 3 = 6

2 and 3 are factors of 6

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The factors of a number are numbers that divide the number without a remainder

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EXAMPLE

Find the common factors of 24 and 36

24 =�� 1 x 24 �� 36 = ��1 x 36

�� =�� 2 x 12�� = ��2 x 18

�� = ��3 x 8 �� = ��3 x 12

�� = ��4 x 6 �� =� �4 x 9

�� =�� 6 x 6

Factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24

Factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36

Common factors of 24 and 36 are: 1, 2, 3, 4, 6, 12

The highest common factor� is 12.

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EXERCISE

Find the HCF of:

Lesson Notes By Weeks and Term - Primary 4