1.2 KiB
1.2 KiB
id | challengeType | title | videoUrl | localeTitle |
---|---|---|---|---|
5900f5131000cf542c510024 | 5 | Problem 421: Prime factors of n15+1 | Problema 421: Factores primos de n15 + 1 |
Description
Por ejemplo, 215 + 1 = 3 × 3 × 11 × 331. Entonces s (2,10) = 3 y s (2,1000) = 3 + 11 + 331 = 345.
También 1015 + 1 = 7 × 11 × 13 × 211 × 241 × 2161 × 9091. Entonces s (10,100) = 31 y s (10,1000) = 483. Encuentra ∑ s (n, 108) para 1 ≤ n ≤ 1011.
Instructions
Tests
tests:
- text: <code>euler421()</code> debe devolver 2304215802083466200.
testString: 'assert.strictEqual(euler421(), 2304215802083466200, "<code>euler421()</code> should return 2304215802083466200.");'
Challenge Seed
function euler421() {
// Good luck!
return true;
}
euler421();
Solution
// solution required