When I run this program it shows erron in line 4.

n = input("ENTER A NUMBER "); flag = 0 ; for i=1:n if (modulo(n,i)==0) then flag = flag+1 ; end end if (flag==2)then disp("this is a prime number "); else disp("this is not prime ."); end

Answer 1

[Arif Hoq]

use 'mod' function in the for loop.

n = input("ENTER A NUMBER "); 
flag = 0 ; 
for i=1:n 
    if (mod(n,i)==0) 
        flag = flag+1 ; 
    end
end
if (flag==2)
    disp("this is a prime number "); 
else
    disp("this is not a prime number ");
end