Number Challenges

Test your JavaScript number skills with these practice challenges.

Challenge 1: FizzBuzz Classic

Print numbers 1-15, but for multiples of 3 print "Fizz", for multiples of 5 print "Buzz", and for multiples of both print "FizzBuzz":

Challenge 2: Sum of Digits

Calculate the sum of digits in a number:

Challenge 3: Prime Check

Check if a number is prime:

Challenge 4: Factorial

Calculate the factorial of a number:

Challenge 5: Fibonacci

Generate Fibonacci numbers:

Bonus: Number Palindrome

Check if a number is a palindrome: