Question

Write the natural numbers from 1 to 13. What fraction of them are prime numbers?

Answer 1

Answer:

6/13 of them are prime numbers (2,3,5,7,11,13)

Step-by-step explanation:

Hope it helps! Please mark me as brainliest!

Answer 2

To find : what is the fraction of primes numbers between natural numbers from $1$ to $13$.

Solution :

• Natural numbers : are part of number system which include all the positive integers from $1$ till infinity .
• Natural numbers from  $1$ to $13$ are : $1,2,3,4,5,6,7,8,9,10, 11,12,13.$
• Prime numbers : numbers that have only two factors $1$ and itself are called as prime numbers .
• Prime numbers from $1$ to $13$ are : $2,3,5,7,11,13$
• Now , no. of given natural numbers  $= 13$

                   no. of prime numbers $= 6$

• Therefore, required fraction is $=\frac{6}{13}$

Hence there are $\frac{6}{13}$ prime numbers from  $1$ to $13$.