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public static void main(String[] args) {
ArrayList<Integer> zhishuList=new ArrayList<Integer>();
for (int i = 1; i < 6661; i++) {
if(isZhushu(i)){
zhishuList.add(i);
}
}
String string="";
for (Integer integer : zhishuList) {
string+=integer+" ";
}
System.out.println(string);
}
private static boolean isZhushu(int num){
boolean flag=true;
if(num==1||num==2){
return true;
}
for (int i = 2; i <= Math.sqrt(num); i++) {
if(num%i==0){
flag=false;
break;
}
}
return flag;
}