For Loop in Python

The for loop is used to iterate over a sequence (like a list, tuple, or string) or a range of numbers. It’s one of the fundamental tools for iteration in Python. Here are some beginner-friendly exercises to help you practice using for loops.

Practice Problems

Problems Index

Print numbers from 1 to 10 using a for loop.
Input a number and print its multiplication table.
Input a string and print each character on a new line.
Input a list of numbers and calculate their sum.
Print all even numbers between 1 and 50.
Input a number and calculate its factorial.
Print a pattern of stars for n rows (e.g., a right-angled triangle).
Input a number and check if it’s prime using a for loop.
Print all numbers divisible by 3 and 5 in the range 1 to 100.
Input a string and count the number of vowels in it.

Try It Yourself

Now that you’ve reviewed the problems, practice them below using the code runner!

Pyground

Play with Python!

Output:

Solutions

Print numbers from 1 to 10 using a for loop.
Show Code
for i in range(1, 11): print(i)

Input a number and print its multiplication table.

Show Code

num = int(input("Enter a number: "))
for i in range(1, 11):
    print(num, "x", i, "=", num * i)

Input a string and print each character on a new line.

Show Code

text = input("Enter a string: ")
for char in text:
    print(char)

Input a list of numbers and calculate their sum.

Show Code

numbers = input("Enter numbers separated by spaces: ").split()
total = 0
for num in numbers:
    total += int(num)
print("Sum of numbers:", total)

Print all even numbers between 1 and 50.

Show Code

for i in range(1, 51):
    if i % 2 == 0:
        print(i)

Input a number and calculate its factorial.

Show Code

num = int(input("Enter a number: "))
factorial = 1
for i in range(1, num + 1):
    factorial *= i
print("Factorial of", num, "is", factorial)

Print a pattern of stars for n rows (e.g., a right-angled triangle).

Show Code

n = int(input("Enter the number of rows: "))
for i in range(1, n + 1):
    print("*" * i)

Input a number and check if it’s prime using a for loop.

Show Code

num = int(input("Enter a number: "))
is_prime = True
for i in range(2, num):
    if num % i == 0:
        is_prime = False
        break
if is_prime and num > 1:
    print(num, "is a prime number")
else:
    print(num, "is not a prime number")

Print all numbers divisible by 3 and 5 in the range 1 to 100.

Show Code

for i in range(1, 101):
    if i % 3 == 0 and i % 5 == 0:
        print(i)

Input a string and count the number of vowels in it.

Show Code

text = input("Enter a string: ").lower()
vowels = "aeiou"
count = 0
for char in text:
    if char in vowels:
        count += 1
print("Number of vowels:", count)

If Statements While Loop