程序代码：

#include <stdio.h>
#include <windows.h>

int main(void)
{
   
    DWORD u_m=4294967295;
    DWORD u_n=u_m;
    //  2^32=4294967296;
    //结论DWORD的最大值是2^32-1;

    DWORD u_out[100]={0};
    DWORD u_i=2,u_j=0;

    while(u_i<=u_m)
    {
        if (u_m%u_i == 0)
        {
            u_out[u_j]=u_i;
            u_m=u_m/u_i;
            u_i=2;
            u_j++;
        }
        else
        {
            u_i++;
        }
    }
    u_j=0;
    while(u_out[u_j]>0)
    {
        if(u_out[u_j+1]>0) printf("%u*",u_out[u_j]); else printf("%u=",u_out[u_j]);
        u_j++;
    }
    printf("%u\n",u_n);
    //以下为分割线////////////////////////////////////////////////////////////////
    _int64 m=9223372036854775807;
    _int64 n=m;
    //  2^63=9223372036854775808;
    //结论_int64的最大值是2^63-1;
    _int64 out[100]={0};
    _int64 i=2,j=0;
   
    while(i<=m)
    {
        if (m%i == 0)
        {
            out[j]=i;
            m=m/i;
            i=2;
            j++;
        }
        else
        {
            i++;
        }
    }
    j=0;
    while(out[j]>0)
    {
        if(out[j+1]>0) printf("%I64d*",out[j]); else printf("%I64d=",out[j]);
        j++;
    }
    printf("%I64d\n",n);
    return 0;
}
/*
    样例输出:
               3*5*17*257*65537=4294967295
    7*7*73*127*337*92737*649657=9223372036854775807
*/