Problem 46050. Construct a prime circle

• Created by ChrisR
• Appears in Prime Numbers I

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A prime circle is a circular arrangement of the numbers 1 to such that pairs of consecutive numbers add to primes. For example, if n = 3, a valid prime circle would be

1 6 5 2 3 4

because the sums of pairs would be 7, 11, 7, 5, 7, and (wrapping around) 5--all of which are prime.

Write a function to create a prime circle given n. The test suite will check that prime circle has the right numbers and that the sums of pairs are prime.

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Solution Stats

31.37% Correct | 68.63% Incorrect

• 153 Solutions
• 38 Solvers

Last Solution submitted on Mar 02, 2025

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