Factors

Fill in the missing numbers

i) 5 X ____ = 20;

ii) 2 X ____ = 20;

iii) 1 X ____= 20

• 4, 10, 20

• 5, 6, 10

• 4, 5, 10

• 20, 10, 4

Find all factors of 20

• a) 1, 2, 4, 5, 10, 20

• b) 1, 2, 3, 4, 5, 10, 20

• c) 1, 3, 4, 6, 8, 10, 12, 20

• d) 1, 2, 4, 6, 8

Fill in the missing numbers

i) 12 X ____ = 12 ;

ii) 2 X ____= 12 ;

iii) ____ X 3 = 12

• 1, 6, 4
• 1, 6, 3
• 2, 6, 4
• 1, 5, 4

Find all factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 3, 4, 5, 6, 12
• 1, 2, 3, 4, 5, 6, 7, 12
• 1, 2, 3, 4, 6, 8, 12

Find common factors of 12 and 20

• 1, 2, 4, 5
• 1, 2, 4, 10
• 1, 2, 4, 20
• 1, 2, 4

Find the highest common factor of 12 and 20

• 2
• 4
• 5
• 10

In a Kindergarten school, there are 30 children. There are 3 swings to play. Find out

how many groups can the children be divided into , so that all of them get to swing within the shortest duration of time?

• 10 groups
• 15 groups
• 20 groups
• 30 groups

The smallest factor of every number is …………………..

• 2
• 0
• 1
• The number itself

The greatest factor of 32 is …………………..

• 16
• 8
• 4
• 32

2 is the factor of all ………………….. numbers.

• Even
• Odd
• Prime
• Negative