3.Writeprogram codesusing forloop of the followingquestions. The code should be written incomplete JavaScript format. Show thedry run. a)Accept a number from the user, check if the number is a prime number and display an appropriate message. For example, if the user inputs 7, then display the message, “7 is a prime number”, otherwise if the user inputs 8, then display the message, “8 is not a prime number”.(Prime numberis a number whose only factors are1 and the number itself.)b)Display the factorialand the first fivemultiples of 5usinga singlefor loop.(Factorial is the product of an integer and all thepositiveintegers lesser thanit. Eg. 5!=1*2*3*4*5=120)