Contents
- 1 What is the largest palindrome made from the product of two 3 digit numbers?
- 2 How many solutions can give a palindrome if you multiply two 3 digit numbers by 999?
- 3 What is the longest palindrome sentence?
- 4 Which is the best solution to Project Euler problem 4?
- 5 How to find the largest palindrome product in Python?
What is the largest palindrome made from the product of two 3 digit numbers?
995*583 = 580085 is a palindrome. 993*913 = 906609 is also a (larger) palindrome.
Can you find the largest palindrome made from the product of two 2 digit numbers?
The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.
How many solutions can give a palindrome if you multiply two 3 digit numbers by 999?
if we we square 999, we will have the largest possible number we can as a product of two 3-digit numbers. 999 * 999 = 998001. The largest palindrome which can be made which is less than that must be 997799. The smallest possible palindrome we can encounter is 11111.
How do you find the 3 digit palindrome?
The three digit palindromes are 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, . . . One could list all of the three digit palindromes to see how many there are, but a more general formula can be derived to find the number of k-digit palindromes, where k is any whole number greater than one.
What is the longest palindrome sentence?
The longest known palindromic word is saippuakivikauppias (19 letters), which is Finnish for a dealer in lye (caustic soda). A palindrome is a word or phrase where the letters read backwards, give the same word or phrase, eg: the phrase ‘Madam I’m Adam’, with the reply ‘Eve’.
Is Aibohphobia a real word?
Aibohphobia is the (unofficial) fear of palindromes, which are words that read the same front and back and, you guessed it, the word itself is a palindrome.
Which is the best solution to Project Euler problem 4?
I will pursue solution strategy b, as that is the first I thought of. if we we square 999, we will have the largest possible number we can as a product of two 3-digit numbers. 999 * 999 = 998001. The largest palindrome which can be made which is less than that must be 997799.
Which is the largest palindrome made from two 2 digit numbers?
The task states as such: “A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99. Find the largest palindrome made from the product of two 3-digit numbers.”
How to find the largest palindrome product in Python?
Here is a typical Python idiom for searching a sorted list for the closest value not meeting nor exceeding a target value, K. One subtle optimization was to check the minimum product, p, first, as the is_palindromic () function is computationally more expensive.
Why is the is _ palindromic ( P ) function more expensive?
One subtle optimization was to check the minimum product, p, first, as the is_palindromic () function is computationally more expensive. This is because when the first logical and condition of an if statement is false then all following conditions are ignored.