1.6 KiB
1.6 KiB
id | challengeType | title |
---|---|---|
5900f4741000cf542c50ff86 | 5 | Problem 263: An engineers' dream come true |
Description
A pair of consecutive prime numbers with a difference of six is called a sexy pair (since "sex" is the Latin word for "six"). The first sexy pair is (23, 29).
We may occasionally find a triple-pair, which means three consecutive sexy prime pairs, such that the second member of each pair is the first member of the next pair.
We shall call a number n such that : (n-9, n-3), (n-3,n+3), (n+3, n+9) form a triple-pair, and the numbers n-8, n-4, n, n+4 and n+8 are all practical,
an engineers’ paradise.
Find the sum of the first four engineers’ paradises.
Instructions
Tests
tests:
- text: <code>euler263()</code> should return 2039506520.
testString: assert.strictEqual(euler263(), 2039506520, '<code>euler263()</code> should return 2039506520.');
Challenge Seed
function euler263() {
// Good luck!
return true;
}
euler263();
Solution
// solution required