# Exercise 3.1

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1.**Write all the factors of the following numbers.**

**24** are 1, 2,

**15** are

**21** are 1,

**27** are 1,

**12** are 1, 2, 3,

**20** are 1, 2, 4,

**18** are 1,

**23** are

**36** are 1, 2, 3,

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2.**Match the following**

hint="The multiples of a number keep getting bigger.

The factors of a number are always smaller than or equal to the number."

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3.**Write first five multiples of:**

a. 5 :

b. 8 : 8,

c. 9 : 9,

**hint="To find the first five multiples of a number, multiply the number by 1, 2, 3, 4, and 5."**

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4.**Find all the multiples of 9 upto 100.**

**hint="Multiples of 9 are numbers that can be divided by 9 without leaving a remainder."**