#include<stdio.h>
int main()
{
    int n,i;
    printf("please input the 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",n);
    return 1;
}