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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: 7|35 means,
7 is a factor of 35
35 is a factor of 7

Q 2: 9|36 means,
36 is a factor of 9
9 is a factor of 36

Q 3: Write the factors of 7.
{1,3,7}
{1,5,7}
{1,7}

Q 4: Write the factors of 48.
{1,2,3,4,5,6,8,12,16,24,48}
{1,2,3,4,6,8,12,13,16,24,48}
{1,2,3,4,6,8,12,16,24,48}

Q 5: Write the factors of 32.
{1,2,4,8,14,16,32}
{1,2,4,8,16,32}
{1,2,4,8,16,24,32}

Q 6: 8|40 means,
8 is a divisor of 40
40 is a divisor of 8

Q 7: 16|64 means,
64 is a factor of 16
16 is a factor of 64

Q 8: 15|90 means,
90 is a multiple of 15
15 is a multiple of 90

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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