Brain Teasers
Can a Number be a Palindrome?
What number, when multiplied by itself, is a palindrome when used nine times or fewer?
For example, if the digit is "A", then the products:
AA x AAA
A x AAAAA
AAA x AAA
AAAAAA x AAAAA
etc.
would all have palindromes for answers.
A palindrome is a word (or in this case a number) which is read the same way forward and backward.
For example, if the digit is "A", then the products:
AA x AAA
A x AAAAA
AAA x AAA
AAAAAA x AAAAA
etc.
would all have palindromes for answers.
A palindrome is a word (or in this case a number) which is read the same way forward and backward.
Answer
1 is one answer.1x1=1
11x11=121
111x111=12321
1111x1111=1234321
11x111111=1222221 etc, etc...
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