C :

#include <stdio.h> 
void swap(int *a, int *b)
{
	int temp;
	temp = *a;
	*a = *b; *b = temp;
}
int f(int a, int b)
{
	int m, n, r;
	if(a<b)
	swap(&a, &b);
	m = a, n = b, r = a % b;
	if(r==0)	return a;
	else	return a*b; 
}
int main()
{
	int a,b,c;
	scanf("%d %d %d",&a,&b,&c);
	printf("%d",f(f(a,b),c));  
	return 0;
}