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How to Solve Prime Palindrome Problem
Master the Prime Palindrome LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Medium#866
LeetCode ProblemPrime Palindrome
Given an integer n, return the smallest prime palindrome greater than or equal to n. An integer is prime if it has exactly two divisors: 1 and itself. Note that 1 is not a prime number. An integer is a palindrome if it reads the same from left to right as it does from right to left. The test cases are generated so that the answer always exists and is in the range [2, 2 * 108].
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Problem Breakdown
Understanding the Prime Palindrome Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given an integer n, return the smallest prime palindrome greater than or equal to n. An integer is prime if it has exactly two divisors: 1 and itself. Note that 1 is not a prime number. An integer is a palindrome if it reads the same from left to right as it does from right to left. The test cases are generated so that the answer always exists and is in the range [2, 2 * 108].
MediumProblem #866
LeetCodePrime Palindrome
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How PhantomCodeAI Helps
Get real-time assistance for Prime Palindrome problems during coding interviews. PhantomCodeAI provides instant solutions and explanations.
Examples
# Example 1
Input
n = 6
Output
7
# Example 2
Input
n = 8
Output
11
# Example 3
Input
n = 13
Output
101
Constraints
1 <= n <= 108
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Solve Prime Palindrome — Given an integer n, return the smallest prime palindrome greater than or equal t...
Here's the optimal approach using Math:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
Common questions about solving Prime Palindrome and using PhantomCodeAI during coding interviews.
How does PhantomCodeAI help with LeetCode problems during a coding interview?
PhantomCodeAI reads the problem from a screenshot or listens to it via audio, then generates a complete solution with a step-by-step approach and time/space complexity, so you can focus on explaining your reasoning rather than getting stuck on implementation.
Which programming languages does PhantomCodeAI support?
11 languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set a preferred language to get idiomatic solutions.
Does PhantomCodeAI work with HackerRank, CodeSignal, and CoderPad?
Yes — it works alongside LeetCode, HackerRank, CodeSignal, CoderPad, and HackerEarth, plus any browser-based coding environment.
Can PhantomCodeAI handle follow-up questions and modifications?
Yes. Capture the modified problem by screenshot or audio and get an updated solution within seconds, including new edge cases and optimizations.
Is PhantomCodeAI detectable during live interviews?
PhantomCodeAI runs as a native desktop overlay that does not appear in screen shares, recordings, or proctoring software, and works with Zoom, Google Meet, Microsoft Teams, and major coding platforms.
Should I still practice these problems on my own first?
Yes. The most durable preparation is solving problems unaided first, then using AI afterward to review your approach, complexity, and missed edge cases — use it to debrief and learn, not to skip the reps.
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