In this article learn how to identify palindrome numbers using Python, with step-by-step explanations and optimization techniques. Discover the mathematical and programming concepts behind palindrome numbers.
A palindrome number is a number that remains the same when its digits are reversed. In other words, if you read the number from left to right or right to left, it will still be the same number.
For example, 11, 121, 12321, and 3443 are palindrome num.
word = input("Enter a word: ") # Remove whitespace and convert to lowercase word = word.replace(" ", "").lower() # Reverse the word reversed_word = word[::-1] # Check if the original and reversed words are equal if word == reversed_word: print("It is a palindrome.") else: print("It is not a palindrome.")
num = 121 palindrome_number = num reverse_num = 0 while num > 0: #121, 12, 1 digit = num % 10 #1, #2, #1 reverse_num = (reverse_num*10)+digit #(0*10)=0+1=1, #(1*10)=10+2=12, #(12*10)=120+1=121 num = num//10 #121//10 = 12, #12//10 = 1, #1//10 = 0 if palindrome_number == reverse_num: print(True) else: print(False)
%) and adding it to the
reverse_numvariable. The loop continues until the original number becomes zero. Finally, it compares the original number and the reversed number to determine if they are equal and prints the result accordingly.
def is_palindrome(string): # Remove whitespace and convert to lowercase string = string.replace(" ", "").lower() # Reverse the string reversed_string = string[::-1] # Check if the original and reversed strings are equal if string == reversed_string: return True else: return False # Example usage word = input("Enter a word: ") if is_palindrome(word): print(word,"-is a palindrome.") else: print(word,"-is not a palindrome.")
def is_palindrome(number): # Convert the number to a string number_str = str(number) # Reverse the string reversed_str = number_str[::-1] # Check if the original and reversed strings are equal if number_str == reversed_str: return True else: return False # Example usage num = int(input("Enter a number: ")) if is_palindrome(num): print(num,"is a palindrome.") else: print(num,"is not a palindrome.")
In this article, we explored how to identify palindrome numbers using Python. Which is the concept of reading the same number from backward as forward.
We learned that palindrome numbers can be determined by comparing the original number with its reverse. By utilizing string manipulation techniques and mathematical operations, we can easily check whether a given number is a palindrome or not.
We discussed various approaches to solve this problem, including converting the number to a string and comparing it with its reversed version, or using mathematical operations to extract digits and construct a reverse number for comparison.
Overall, by mastering the techniques discussed, you’ll be well-equipped to tackle palindrome number problems and further develop your programming skills.