I am making a factorial calc with static methods I’ve been able to make it work with one int at a time but the scanner needs to be able to take two `int`

s (N and M) where the code executes the factorial of all numbers from N up to M.

```
import java.util.Scanner;
public class Factorial {
public static long Factorialcalc(int n) {
long fact = 1;
for (int i = 1; i <= n; i++) {
fact *= i;
}
return fact;
}
public static void main(String args[]) {
System.out.println("Enter first int N");
Scanner sc = new Scanner(System.in);
int n;
long fact = 1;
n = sc.nextInt();
System.out.println("Enter second int M");
int m;
m = sc.nextInt();
if (n < 0) {
System.out.println("Not Valid!");
} else {
for (int i = n; i <= m; i++) {
fact = Factorialcalc(i);
}
fact = Factorialcalc(n);
System.out.println("the factorial for " + n + " is " + fact + ".");
}
}
}
```

I’m not sure how I should go about adding in the M int for it to calculate the factorial from N upwards.

in `main`

method following changes required:

`int m = sc.nextInt()`

in else block:

```
for (int i=n;i<=m;i++){
fact = Factorial.Factorialcalc(i);
}
```

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