Find all primes less than or equal to Lim, store them in AA array, and return the number of primes

#include<stdio.h>
#include<stdlib.h>
#define MAX 100
int fun(int lim,int aa[MAX]);
int main()
{
    
    int limit,i,sum;
	int aa[MAX];
	printf(" Enter a number :");
	scanf("%d",&limit);
	sum=fun(limit,aa);
	for(i=0;i<sum;i++)
	{
    
		 if(i%10==0&&i!=0)
		 	 printf("\n");
		 printf("%5d",aa[i]);
	}
}
int fun(int lim,int aa[MAX])
{
    
	 int i,j,k=0;
	 for(i=2;i<=lim;i++) 
	 	{
    
		   for(j=2;j<i;j++)
			 {
    
			   if(i%j==0)
	 	 	  	 break;
	 	     }
	 	 	   if(j>=i)
			  {
    
			    aa[k++]=i;
	       	}
		}
	 return k;
}