<script> function getPrimGens(a) { var arr = getGens(a); var c = []; for(var i=0;i<arr.length;i++){ var t = getGens(arr[i]); if(t.length==0) c.push(arr[i]); } return c;
}function getGens(a) { var arr = []; var n = a/2 + 1; for(var i=2; i<n; i++){ if(a%i == 0) arr.push(i)
{
int n,i;
printf("\nplease input a number:\n");
scanf("%d",&n);
printf("%d=",n);
for(i=2;i<=n;i++)
{
while(n!=i)
{
if(n%i==0)
{ printf("%d*",i);
n=n/i;
}
else
break;
}
}
printf("%d",n);}
function getPrimGens(a)
{
var arr = getGens(a);
var c = [];
for(var i=0;i<arr.length;i++){
var t = getGens(arr[i]);
if(t.length==0) c.push(arr[i]);
}
return c;
}function getGens(a)
{
var arr = [];
var n = a/2 + 1;
for(var i=2; i<n; i++){
if(a%i == 0) arr.push(i)
}
return arr;
}alert(getPrimGens(180));//2,3,5
</script>
var ret = [];
var prim = 2;
while( num > 1 ){
while(!isPrim(prim)){
++prim;
}
while(num%prim==0){
num/=prim;
ret.push(prim);
}
}
<script>
function getPreGens(a)
{
var arr = [];
var n = Math.floor(a/2)+ 1;
var t = n;
var i;
while(1==1)
{
if(i==t)
{
arr.push(a);
break;
}
for(i=2; i<t; i++)
{
if(a%i == 0)
{
arr.push(i);
a = a/i;
t = Math.floor(a/2 )+ 1;
break;
}
}
}
return arr;
}alert(getPreGens(180));//2,2,3,3,5</script>
var arr=new Array();
var j=0;
for(var i=0;i<x;i++){
arr[j]=i;
j++;
}
return arr;
}
function wanahu(x){
for(var i=1;i<x;i++){
var temp=yinzi[i];
var tempnum=0;
for(var j=0;j<temp.length;j++){
tempnum+=parseInt(temp[j]);
}
if(tempnum==i){
document.write(i+"<br/>");
}
}
}
wanshu(1000);