Find the largest palindrome made from the product of two 3-digit numbers

+2 votes
43 views
asked Jan 11, 2017 in PHP by Rohit Singh (61,782 points) 35 133 356

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.

1 Answer

+2 votes
answered Jan 11, 2017 by Abhishek Kumar (14,593 points) 5 9 35

Run this code to get palindrome number

<?php
$palindrome = 0;

for ($i = 100; $i <= 999; $i++) {
	for ($j = 100; $j <= 999; $j++) {
		$x = $i * $j;
		if ($x > $palindrome && $x == strrev($x)) {
			$palindrome = $x;
		}
	}
}

echo $palindrome; ?>

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

One Thought Forever

“There is a close connection between getting up in the world and getting up in the morning.“
– Anon
~~~*****~~~

...