. How many elements are sets of even prime numbers
Ans. Correct option is A.
Firstly, we have to know the difference between even number and prime number.
The number which is divided by 2 is called even number. for example,2, 4, 6, 8, 10, 12, 14, 16 etc.
Prime numbers are figures which have exactly two factors 1 and themselves.
For illustration the first 5 high figures are 2, 3, 5, 7 and 11. By difference, figures with further than two factors are called composite numbers.
Indeed high number
The only even prime number is 2. All other even numbers can be divided by 2 so other even figures will have three factors as 1, 2 and themselves so there's only one even prime number.