Before starting it is important to note what a prime. Print(num, "is NOT a prime number it is a COMPOSITE number") Write a program to generate a list of all prime numbers less than 20.
Print(num, "is a neither prime NOR composite number") Program : num = int(input("Enter any number : "))
check if num divided by any number gives a remainder 0.But 6 is not prime (it is composite) since, 2 x 3 6. The program will take the first and the last number of the range as input from the user and print out. are prime numbers as they do not have any other factors. Python program to find all prime numbers in a range. Run a for loop ranging from 2 to the num entered. A positive integer greater than 1 which has no other factors except 1 and the number itself is called a prime number.Read input number using input()or raw_input().TIP: I suggest you refer Factors of a Number, and Prime Number articles to understand this python program logic. Next, Python returns the prime factors of that number using the For Loop. The remaining list only contains prime numbers. Starting from 2, delete all of its multiples in the list, except itself. This python program allows the user to enter any positive integer. It follows the following steps to get all the prime numbers from up to n: Make a list of all numbers from 2 to n. To find whether a number is a prime or composite number. Python Program to find Prime Factors of a Number using For Loop.