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## Prime Numbers

__Definition__

A number which has only two factors i.e. itself and 1 is referred to as a **Prime Number.**
**In other words,** the numbers which are only divisible by itself and 1 are called **Prime Numbers.**
**Also,** a number other than 1; whose factor are 1 and the number itself is known as a **Prime Number.**

Read the following examples to further understood **Prime Numbers**

**Example 1 = **Find given number 5 is prime number ?
**Answer =** Find the factors of given number 5.

Factors of 5 = 1 and 5

Now, as you can notice that the given number 5 has only two factors i.e 1 and itself.

So, we can say that given number **5 is a Prime Number.**

**Example 2 = **Find given number 8 is prime number ?
**Answer =** Find the factors of given number 8.

Factors of 8 = 1, 2, 4, 8

Now, as you can notice that the given number 8 has more than two factors.

So, we can say that given number **8 is not a Prime Number.**

**Example 3 = **Find given number 17 is prime number ?
**Answer =** Find the factors of given number 17.

Factors of 17 = 1 and 17

Now, as you can notice that the given number 17 has only two factors i.e 1 and itself.

So, we can say that given number **17 is a Prime Number.**