Java Program to Check Prime Number - Tutorial Gateway.
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In this JavaScript code, we are going to check whether a given number is prime number or not. Submitted by Aleesha Ali, on March 25, 2018 Prime: When a number can be divide by one (1) or itself then the number is Prime number.
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This lesson of Java programming language will teach you the coding to find out whether a given number is prime or not. Here we have used the 'for loop' statement and given the required condition for a prime number. As we know, a prime number is only divided by 1 and itself, in other words it has no other factorial other than 1 and the number.
Consider three cases. If the number is actually prime then it doesn't matter when you stop at the ceiling or the floor; either way you are going to deduce correctly that it is prime. Now suppose that it is composite and a perfect square. Then the ceiling and the floor are equal, so again, it doesn't matter which you choose because they are the same.
And the Number that we inserted is 11. So, the condition is True, which means Prime Number. So, 11 is a prime number. C Program to Find Prime Number Using While Loop. This program for prime numbers allows the user to enter any integer value. Next, this program will check a number is a Prime number or not using While Loop.