perplexus.info :: Numbers : Biggest palindrome

Biggest palindrome (Posted on 2019-02-21)

For n = 1: 9 is the largest palindrome which is the product of two 1-digit numbers.
9 = 3*3

For n = 2: 9009 is the largest palindrome which is the product of two 2-digit numbers.
9009 = 91*99

Continue for n=3, 4, ..., etc.

How far can you go?

Submitted by Ady TZIDON

No Rating

Solution: (Hide)

No limit, if n is even.
See Paul's solution how to generate a palindrome of length 2m.

Comments: ( You must be logged in to post comments.)

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (16)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info