41 lines
589 B
Markdown
41 lines
589 B
Markdown
---
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id: 5900f42f1000cf542c50ff41
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title: 问题193:无广场数字
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challengeType: 5
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videoUrl: ''
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dashedName: problem-193-squarefree-numbers
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---
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# --description--
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如果没有素数的平方除n,则正整数n称为squarefree,因此1,2,3,5,6,7,10,11是无平方的,但不是4,8,9,12。
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250以下有多少平方数?
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# --hints--
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`euler193()`应该返回684465067343069。
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```js
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assert.strictEqual(euler193(), 684465067343069);
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```
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# --seed--
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## --seed-contents--
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```js
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function euler193() {
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return true;
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}
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euler193();
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```
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# --solutions--
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```js
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// solution required
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```
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