declare
i number:=1;
j number:=0;
sum1 number:=0;
begin
while(i<100)
loop
i:=i+1;
j:=2;
while(mod(i,j)!=0)
loop
j:=j+1;
if(i=j)
then
exit;
end if;
end loop;

if(i=j)
then
sum1:=sum1+i;
DBMS_OUTPUT.PUT_LINE(i);
end if;
end loop;
DBMS_OUTPUT.PUT_LINE(SUM1);
end
;