Python Program to Print Prime Numbers from 1 to N using For loop

Python program to print prime numbers from 1 to n using for loop. In this article, you will learn how to make python program to print prime numbers from 1 to n using for loop.

Sample of Prime Numbers

Source Code

# Python Program to Print Prime Numbers from 1 to N using For loop
print ("Please enter a range for print the prime numbers: ", end="")

x = int (input ())
print ("\n\n------The prime numbers from 1 to ", x, " are------\n\n")

for i in range (x):
    
    # There are neither prime nor composite if as skip 0 and 1 number
    if i == 1 or i == 0:
        continue
    
    f = 1
    
    for j in range (2, int (i / 2) + 1):
        if i % j == 0:
            f = 0
            break
    
    # If f = 1 means i is prime number and f = 0 means i is not prime number
    if f == 1:
        print (i, end=" ")

print ("\n")

Run Program

Output