Question

Write a program in java to input a number and check whether it is a prime number or not if it is not a prime number then display the next number that is prime.​

Answer 1

Explanation:

A prime number is a natural number greater than 1 which are divisible by only 1 and itself. For example 2, 3, 5, 7, 11… are prime numbers because they can neither be divided nor is a result of the multiplication. Programs on Prime numbers are one of the most frequently asked Java interview questions for freshers. In this post, I have collected some of the important prime number programs in Java.

Program to check whether the given number is prime or not

Program to find out all prime numbers between two given numbers

Program to check whether the given number is prime or not using recursion

Program to check if the number is prime or not using a flag variable

Program to print prime numbers between 1 to 100