You might also like this article on decimal numbers in Python. To learn more about numbers, you can read this article on complex numbers in python. In this article, we have discussed three ways to check for a prime number in python. If a factor is present, it returns False stating that the input number N is not a prime number. ![]() if number itr 0: if given number divided by itr or not. ![]() def Prime (number,itr): if itr 1: return True. We can use the exact logic shown in method 2 but in a recursive way. Then it checks whether any number between 2 and N-1 is a factor of N or not using a for loop. We can also find the number prime or not using recursion. For this, we will define a function isPrime() that takes a number N as input. Check For Prime Number in Pythonįor checking if a number is prime or not, we just have to make sure that all the numbers greater than 1 and less than the number itself should not be a factor of the number. ![]() You can observe that all other numbers also have only two factors.
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