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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
5.20 Factor and Multiple

If 'b' divides 'a' leaving zero remainder then 'b' is called a factor or divisor of a, and a is called multiple of b.

Example:
In the problem 5|25,
1. 5 is a factor of 25.
2. 5 is a divisor of 25.
3. 25 is a multiple of 5.

Example:
In the problem 9 x 7 = 63,
1. 9 is a factor of 63.
2. 7 is a factor of 63.
3. 63 is a multiple of both 9 and 7.

Example:
Write all the factor of 28.
28 = {1,2,4,7,14,28}
Write down all the factor of 6.
6 = {1,2,3,6}
From above examples we can observe that,
1. 1 is a least factor of every natural number.
2. Every natural number is the factor of itself and it is the greatest.


Directions: Choose the correct answer. Also write at least five examples of factors and multiples of your own.
Q 1: 9|36 means,
36 is a factor of 9
9 is a factor of 36

Q 2: Write the factors of 32.
{1,2,4,8,16,32}
{1,2,4,8,16,24,32}
{1,2,4,8,14,16,32}

Q 3: 17|34 means,
17 is a multiple of 34
34 is a multiple of 17

Q 4: Write the factors of 72.
{1,2,3,4,6,8,9,12,18,24,28,36,72}
{1,2,3,4,6,8,9,12,18,24,36,42,72}
{1,2,3,4,6,8,9,12,18,24,36,72}

Q 5: 12|144 means,
12 is a divisor of 144
144 is a divisor of 12

Q 6: Write the factors of 80.
{1,2,4,5,6,8,10,16,20,40,80}
{1,2,4,5,8,10,16,20,40,80}
{1,2,3,4,5,8,10,16,20,40,80}

Q 7: 18|54 means,
18 is a factor of 35
35 is a factor of 18

Q 8: Write the factors of 16.
{1,2,4,6,8,16}
{1,2,4,8,12,16}
{1,2,4,8,16}

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Question 10: This question is available to subscribers only!


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