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Print Prime Numbers in a Given Range

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A Python program to find and print all prime numbers in a given range.

Here’s an explanation of the code in points:

Function Definition (is_prime(num))
- The function is_prime(num) checks whether a given number is prime.
- If num is less than 2, it returns False since prime numbers start from 2.
- It iterates from 2 to sqrt(num), checking if num is divisible by any number in this range.
- If a divisor is found, it returns False; otherwise, it returns True.
Function Definition (print_primes(start, end))
- This function prints all prime numbers in the given range [start, end].
- It loops through each number in the range and calls is_prime(i).
- If the number is prime, it prints it on the same line.
Taking User Input
- The program prompts the user to enter the start and end of the range.
- The inputs are converted to integers.
Calling print_primes(start, end)
- The function is executed with the user-defined range to display all prime numbers in that range.

Program:

def is_prime(num):

    if num<2:

        return False

    for i in range (2,int(num**0.5)+1):

        if num%i==0:

            return False

    return True



def print_primes(start,end):

    print(f"Prime numbers between {start} and {end} are:")

    for i in range(start,end+1):

        if is_prime(i):

            print(i,end=" ")

    print()

start=int(input("enter start of range:"))

end=int(input("enter end of range:"))

print_primes(start,end)

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