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The number '4' can be considered a palindrome because it is read the same whether forward or backward. It can become another palindrome when it is considered as 2x2.
Deed
4224
Noon is one.
toot ??? peep???
8778
Any number that is is a palindrome will always be a palindrome.
a palindrome can be greater than just four alphabets for eg. 'racecar'.
-1
4 or 121
not 4 letters but 5 as STATS
poop (deck)
8998