# Express A Number as A Product of its Factors

Class: Primary 4. Subject:

Mathematics

Topic: FACTORS OF NUMBER

Pupil’s Activities 1 – Express

Number as A Product of Two

Numbers

Sample – Quantitative Reasoning

1 = 1 x 1

2 = 1 x 2, 2 x 1

3 = 1 x 3, 3 x 1

4 = 1 x 4, 4 x 1, 2 x 2

6 = 1 x 6, 6 x 1, 2 x 3, 3 x 2

Express the number – 5, 7, 8, 9 and

10 as product of two numbers.

Expected response

1) . 5 = 1 x 5, 5 x 1

2.) 7 = 1 x 7, 7 x 1

3.) 8 = 1 x 8, 8 x 1, 4 x 2, 2 x

4

4) . 9 = 1 x 9, 9 x 1, 3 x 3

5.) 10 = 1 x 10, 10 x 1, 2 x 5,

5 x 2

Teacher’s remark – Each digit of the

product of a number is a factor that

number. For example, 1 and 5 are

factors of 5 without repeating any

number. Also, 1, 2, 4 and 8 are the

products of 8, 1, 2, 5, and 10 are

factors of 10.

Pupil’s Activities 2 –

Exercises/Take Home

Find the factors of

1. 11

2. 12

3. 13

4. 14

5. 15[mediator_tech]