Palindromes in Different Bases: A Conjecture of J. Ernest Wilkins
classification
🧮 math.NT
keywords
basedifferentdigitpalindromesomebasesconjectureernest
read the original abstract
We show that there exist exactly 203 positive integers $N$ such that for some integer $d \geq 2$ this number is a $d$-digit palindrome base 10 as well as a $d$-digit palindrome for some base $b$ different from 10. To be more precise, such $N$ range from 22 to 9986831781362631871386899.
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