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gikf f93acf28a6 fix(curriculum): clean-up Project Euler 261-280 (#42905)
* fix: clean-up Project Euler 261-280

* fix: typo

* fix: typo

* fix: typo
2021-07-24 09:09:54 +02:00

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---
id: 5900f4771000cf542c50ff89
title: 'Problem 266: Pseudo Square Root'
challengeType: 5
forumTopicId: 301915
dashedName: problem-266-pseudo-square-root
---
# --description--
The divisors of 12 are: 1,2,3,4,6 and 12.
The largest divisor of 12 that does not exceed the square root of 12 is 3.
We shall call the largest divisor of an integer $n$ that does not exceed the square root of $n$ the pseudo square root ($PSR$) of $n$.
It can be seen that $PSR(3102) = 47$.
Let $p$ be the product of the primes below 190. Find $PSR(p)\bmod {10}^{16}$.
# --hints--
`pseudoSquareRoot()` should return `1096883702440585`.
```js
assert.strictEqual(pseudoSquareRoot(), 1096883702440585);
```
# --seed--
## --seed-contents--
```js
function pseudoSquareRoot() {
return true;
}
pseudoSquareRoot();
```
# --solutions--
```js
// solution required
```