Question

how to find prime numbers?​

Answer 1

Answer:

Hi dear♡♡♡♡

You can find prime no. in a easy way

Step 1: First find the factors of the given number

Step 2: Check the number of factors of that number

Step 3: If the number of factors is more than two, it is not a prime number.

Example: Take a number, say, 36.

● Now, 36 can be written as 2 × 3 × 2 × 3. So, the factors of 36 here are 1, 2, 3, 4, 6, 9, 12, 18, and 36.

● Since the number of factors of 36 is more than 2, it is not a prime number but a composite number.

● Now, if we take the example of 19.

● The prime factorisation of 19 is 1 x 19.

● You can see here, there are two factors of 19.

● Hence, it is a prime number.

Hope it helps ♡♡♡

Answer 2

Prime numbers are the numbers which should be divided by 1 and itself. To find prime numbers we should see that the numbers should be divided by 1 and itself. Example such as 2. If we divide it by 1 and itself, we are getting the result 2. So it is a prime number.

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