Problem 49855. Concatenated Consecutive Prime

Created by Doddy Kastanya

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As the name suggested, Concatenated Consecutive Prime is a prime number formed by concatenating consecutive prime numbers. For a given number of constituting primes (defined as "n"), please output a vector containing n consecutive primes that satisfy this problem. There is no unique answer, so your results will be evaluated against the requirements.

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Last Solution submitted on Aug 14, 2025

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William on 18 Jan 2021

The test suite only seems to work if the n primes each have the same number of digits. For example, with n=3, a perfectly good answer would be [5,7,11], but this crashes the test suite. It could be fixed by using combine=strcat(combine,strtrim(b(i,:)));

goc3 on 19 Jan 2021

@William: your suggestion has been incorporated into the test suite.

Doddy Kastanya on 19 Jan 2021

Thank you both for improving the quality of this problem. Cheers, Doddy.

Dyuman Joshi on 3 Jun 2022

Given the limited test suite due to the nature of the question, it can be easily solved by hard-coding.

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Problem 49855. Concatenated Consecutive Prime

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Problem 49855. Concatenated Consecutive Prime

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Last 200 Solutions

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Problem Recent Solvers17

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