List questions from palindrome

Published on 20 Mar 2026 - 7:22

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How many $4$-digit palindromes are divisible by $3$?

Published on 20 Mar 2026 - 17:54

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Palindrome multiple of prime

Published on 20 Mar 2026 - 9:13

250

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Patterns in solutions to simultaneous palindromes in two number bases

Published on 24 Mar 2026 - 19:15

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How many palindromes of length 5 can be formed that contain 7 or 8?

Published on 19 Mar 2026 - 21:24

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How to make a palindromic table where each row and column is a palindrome?

Published on 22 Mar 2026 - 9:39

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Dynamic Programming problem palindrome

Published on 20 Mar 2026 - 11:53

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Prove that a language which consists of concatenation of strings in palindromes is not a regular language?

Published on 22 Mar 2026 - 13:24

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How many palindromes are there in the range $0000$ to $9999$?

Published on 19 Mar 2026 - 18:26

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When are $a+b$ and $ab$ palindromic for integers $a,b$?

Published on 19 Mar 2026 - 22:12

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$p$ and $6p+1$ both palindrome - primes. Is $(131/787)$ the only example?

Published on 22 Mar 2026 - 9:48

128

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Octal palindromes with even number digits are all composite numbers?

Published on 17 Mar 2026 - 21:51

130

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Is the palindrome-prime factor of $p-1$ always larger than that of $p+1$?

Published on 17 Mar 2026 - 21:30

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$L_n = \{x \in \Sigma^{} | \exists w, y, z \in \Sigma^, x = ywz, w^r = w, |w| = n \}$ where x is palindrome of length n, find regex for $n = 1$.

Published on 17 Mar 2026 - 7:28

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Proof verification of the language of all palindromes as being context-free

Published on 25 Mar 2026 - 1:18

List Question

The quotient of two palindromes

How many $4$-digit palindromes are divisible by $3$?

Palindrome multiple of prime

Patterns in solutions to simultaneous palindromes in two number bases

How many palindromes of length 5 can be formed that contain 7 or 8?

How to make a palindromic table where each row and column is a palindrome?

Dynamic Programming problem palindrome

Prove that a language which consists of concatenation of strings in palindromes is not a regular language?

How many palindromes are there in the range $0000$ to $9999$?

When are $a+b$ and $ab$ palindromic for integers $a,b$?

$p$ and $6p+1$ both palindrome - primes. Is $(131/787)$ the only example?

Octal palindromes with even number digits are all composite numbers?

Is the palindrome-prime factor of $p-1$ always larger than that of $p+1$?

$L_n = \{x \in \Sigma^{} | \exists w, y, z \in \Sigma^, x = ywz, w^r = w, |w| = n \}$ where x is palindrome of length n, find regex for $n = 1$.

Proof verification of the language of all palindromes as being context-free

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