Problem 49855. Concatenated Consecutive Prime

Created by Doddy Kastanya

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<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 63px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 31.5px; transform-origin: 407px 31.5px; vertical-align: baseline; "><div style="font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 383.5px 8px; transform-origin: 383.5px 8px; unicode-bidi: normal; "><span style="">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.</span></span></div></div></div>

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Last Solution submitted on Apr 08, 2023

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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 Solvers13

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