---
id: 5900f4d11000cf542c50ffe4
challengeType: 5
title: 'Problem 357: Prime generating integers'
---
## Description
Consider the divisors of 30: 1,2,3,5,6,10,15,30.
It can be seen that for every divisor d of 30, d+30/d is prime.
Find the sum of all positive integers n not exceeding 100 000 000such that
for every divisor d of n, d+n/d is prime.
## Instructions
## Tests
```yml
tests:
- text: euler357() should return 1739023853137.
testString: assert.strictEqual(euler357(), 1739023853137, 'euler357() should return 1739023853137.');
```
## Challenge Seed
```js
function euler357() {
// Good luck!
return true;
}
euler357();
```