Nth Prime

Instructions

Given a number n, determine what the nth prime is.

By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.

If your language provides methods in the standard library to deal with prime numbers, pretend they don't exist and implement them yourself.

Parallelism

The test runner has access to two cores as of 2025-07-28. An exhaustive approach may not benefit from raku's hyper or race. You can check with:

note Kernel.cpu-cores
# 2

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Source

A variation on Problem 7 at Project Euler