---
id: 5900f3d01000cf542c50fee2
challengeType: 5
title: 'Problem 99: Largest exponential'
---
## Description
Comparing two numbers written in index form like 211 and 37 is not difficult, as any calculator would confirm that 211 = 2048 < 37 = 2187.
However, confirming that 632382518061 > 519432525806 would be much more difficult, as both numbers contain over three million digits.
Using base_exp.txt (right click and 'Save Link/Target As...'), a 22K text file containing one thousand lines with a base/exponent pair on each line, determine which line number has the greatest numerical value.
NOTE: The first two lines in the file represent the numbers in the example given above.
## Instructions
## Tests
```yml
tests:
- text: euler99() should return 709.
testString: assert.strictEqual(euler99(), 709, 'euler99() should return 709.');
```
## Challenge Seed
```js
function euler99() {
// Good luck!
return true;
}
euler99();
```