uses crt;
var a:array[1..100]of integer;
i,n,kt,dem,j:integer;
begin
clrscr;
write('Nhap n='); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(a[i]);
end;
dem:=0;
for i:=1 to n do
if a[i]>1 then
begin
kt:=0;
for j:=2 to trunc(sqrt(a[i])) do
if a[i] mod j=0 then
begin
kt:=1;
break;
end;
if kt=0 then inc(dem);
end;
writeln('So phan tu la so nguyen to la: ',dem);
readln;
end.