Java Exercises: Display first 10 Fermat numbers
Java Numbers: Exercise-20 with Solution
Write a Java program to display first 10 Fermat numbers.
In mathematics, a Fermat number is a positive integer of the form
where n is a nonnegative integer.
The first few Fermat numbers are:
3, 5, 17, 257, 65537, 4294967297, 18446744073709551617, …
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.Scanner;
public class Example20 {
public static void main( String args[] ){
int n = 0;
double result;
while (n <= 10) {
result= Math.pow (2, Math.pow(2, n)) + 1;
n++;
System.out.println (result);
}
}
}
Sample Output:
3.0 5.0 17.0 257.0 65537.0 4.294967297E9 1.8446744073709552E19 3.4028236692093846E38 1.157920892373162E77 1.3407807929942597E154 Infinity
Flowchart:
Java Code Editor:
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Previous: Write a Java program to check a number is a cyclic or not.
Next: Write java program to find any number between 1 and n that can be expressed as the sum of two cubes in two (or more) different ways.
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