Why is my integer variable count not incremenating and adding by 1 in for loop

Question

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Trying to increment the integer variable by count each time the if condition returned true.

it is not working properly the count is showing zero at all times

i am trying to find the program for prime number using loop

Answer 1

Change the if condition or statement from if(i%num == 0) to if(num%i == 0). It will lead to correct output. In our case input is number 10 it is divisible by number 2 and number 5. Then the program will print 10 is not an prime number.