Question

Write the set of even prime numbers from 1 to 25 using listing method

Answer 1

Given : set of even prime no. from 1 to 25

To Find : write the set of prime number from 1 to 25 in listing method​

Solution:

Prime numbers are those numbers which have exactly two factors  1 and number it self

Prime numbers from 1 to 25 are

2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23

Let say A represent  set of  prime number from 1 to 25

A = { 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 }

 

Even number are those which are divisible by 2

And only 2 is divisible by 2 in  A

B represent  set of  even prime number from 1 to 25

B = { 2 }

n(B) = 1

{ 2 }  is  set of even prime no. from 1 to 25 in list form

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