大神们，怎么做？

#include <stdio.h>
int multi(int x)
{
int product = 1;
int target = 0;
while (x)
{
target = x % 10;
x /= 10;
product *= target;
}
return product;
}
int main()
{
int x, y, z,i;
for ( i = 123; i < 987 / 3; ++i)
{
x = i;
y = 2 * x;
z = 3 * x;
if ((x % 10 != 0) && (y % 10 != 0) && (z % 10 != 0))
{
if (multi(x) * multi(y) * multi(z) == 362880) // 1*2*3*4*5*6*7*8*9 = 362880
{
printf("%d,%d,%d\n", x, y, z);
}
}
}
system("pause");
return 0;
}