Python Program to Print all Prime Numbers in an Interval

Python Program to Print all Prime Numbers in an Interval: In this program, you’ll learn to print all prime numbers within an interval using for loops and display it.

A positive integer greater than 1 which has no other factors except 1 and the number itself is called a prime number.

2, 3, 5, 7 etc. are prime numbers as they do not have any other factors. But 6 is not prime (it is composite) since, 2 x 3 = 6.

Python Program to Print all Prime Numbers in an Interval

Source Code

# Python program to display all the prime numbers within an interval

lower = 900
upper = 1000

print("Prime numbers between", lower, "and", upper, "are:")

for num in range(lower, upper + 1):
   # all prime numbers are greater than 1
   if num > 1:
       for i in range(2, num):
           if (num % i) == 0:
               break
       else:
           print(num)

Output of Program

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