794 B
794 B
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
5900f3ab1000cf542c50febe | Problem 63: Powerful digit counts | 5 | 302175 | problem-63-powerful-digit-counts |
--description--
The 5-digit number, 16807 = 75, is also a fifth power. Similarly, the 9-digit number, 134217728 = 89, is a ninth power.
How many n
-digit positive integers exist which are also an n
th power?
--hints--
powerfulDigitCounts()
should return a number.
assert(typeof powerfulDigitCounts() === 'number');
powerfulDigitCounts()
should return 49.
assert.strictEqual(powerfulDigitCounts(), 49);
--seed--
--seed-contents--
function powerfulDigitCounts() {
return true;
}
powerfulDigitCounts();
--solutions--
// solution required