Answer Posted / varshil shah

#include<stdio.h>
#include<conio.h>
void factors(int);
void main()
{
int num,fact,i;
clrscr();
printf("\n Enter a number :::");
scanf("%d",&num);
if(num==2)
{
factors(num);
}
else
{
for(i=2;i<=num;i++)
{
if(num%i==0)
{
factors(i);
}
}
}
getch();
}
void factors(int n)
{
int i,notprime=0;
if(n==2)
{
printf("\n Prime factor is 2");
}
else
{
for(i=2;i<n;i++)
{
if(n%i==0)
{
notprime++;
}
}
if(notprime==0)
{
printf("\n Prime factor is %d",i);
}
}
}

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