Problem 235. Project Euler: Problem 4, Palindromic numbers

Created by Doug Hull

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1080 Solutions
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Last Solution submitted on Mar 03, 2021

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Alan Chalker on 16 Feb 2012

Your last test case is accidentally all commented out, so isn't a real test case

Solution Comments

Solution 2792437

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1 Comment

Abhijeet Deshmukh on 4 Oct 2020

can anyone explain what is meaning of products of two inputs ,here input is only one number ,does it mean the square of input

Solution 34918

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4 Comments

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Aurelien Queffurust on 22 Jun 2012

Cheating ...

Ned Gulley on 22 Jun 2012

Thanks for the note Aurelien. I added to the test suite.

zd c on 23 Apr 2020

the largest palindrome made from the product of 9999 is 99977999， not 99000099！
and x=999，y=997799, not 906609.
x=2500, y=6249246, not 6167616
x=100, y=999, not 9009

ChrisR on 9 May 2020

zd c, 99977999 cannot be written as the product of two numbers less than or equal to 9999.

Solution 26458

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1 Comment

Aurelien Queffurust on 22 Jun 2012

Size 42 ! wow should be the best solution

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Problem 235. Project Euler: Problem 4, Palindromic numbers

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Problem 235. Project Euler: Problem 4, Palindromic numbers

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