Answer 1

Try first and show attempts if getting any problem.

Answer 2

You may find answer in https://www.tutorialspoint.com/LCM-of-an-array-of-numbers-in-Java, and in https://www.tutorialspoint.com/finding-lcm-of-more-than-two-or-array-numbers-without-using-gcd-in-cplusplus

Answer 3

Alpha Arun please do not post your homework here. The community is not here to do it for you.
Thanks and happy coding.

https://www.sololearn.com/discuss/1316935/?ref=app

Answer 4

import java.util.Scanner ;
public class MyClass
{
static int hcf(int x,int y) {
int a=x; int t;
int b=y;
if(a<b)
{
while(b!=0)
{
t=b;
b=a%b;
a=t;

}
return a;
}
else
{
while(a!=0)
{
t=a;
a=b%a;
b=t;
}
return b;

}
}

public static void main(String[ ] args)
{ Scanner s=new Scanner(System .in);
int a=s.nextInt();
int b=s.nextInt();
MyClass d=new MyClass();
int h=hcf(a,b);
System .out.println("hcf="+h);
System .out.println("lcm="+((a*b)/h));
}

}