程序代码：

#include<stdio.h>
#include<stdlib.h>
#include<stdbool.h>
int main()
{
    unsigned long *primes=NULL;       

    unsigned long trial=0;             

    bool found =false;
    size_t total=0;
    size_t count=0;
    printf("how many numbers you want to get?you'll get at least 4 numers\n");
    scanf("%u",&total);
    total=total<4U?4U:total;
    primes=(unsigned long *)malloc(total*sizeof(unsigned long));
    if(primes==NULL)
    {
        printf("\nnot enough memory.\n");
        return 1;
    }
    *primes=2UL;
    *(primes+1)=3UL;
    *(primes+2)=5UL;
    count=3U;
    trial=5U;

    while(count<total)
    {
        trial+=2UL;

        for(size_t i=0;i<count;i++)
            if(!(found=(trial%*(primes+i))))
                break;
        if(found)
            *(primes+count++)=trial;
    }
   


    for(size_t i=0;i<total;i++)
    {
        if(!(i%5U))
            printf("\n");
        printf("%12lu",*(primes+i));
    }
    printf("\n");
    return 0;
}