2018-10-10 22:03:03 +00:00
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---
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id: 5900f4931000cf542c50ffa4
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2020-12-16 07:37:30 +00:00
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title: 问题293:伪幸运数
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2018-10-10 22:03:03 +00:00
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challengeType: 5
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videoUrl: ''
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2021-01-13 02:31:00 +00:00
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dashedName: problem-293-pseudo-fortunate-numbers
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2018-10-10 22:03:03 +00:00
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---
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2020-12-16 07:37:30 +00:00
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# --description--
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2020-02-17 16:40:55 +00:00
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如果偶数正整数N是2的幂或它的不同质数因子是连续质数,则称该数为偶数。
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2020-12-16 07:37:30 +00:00
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前十二个允许的数字是2,4,6,8,12,16,18,24,30,32,36,48。
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2020-02-17 16:40:55 +00:00
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如果允许N,则最小的整数M> 1,使得N + M为质数,将被称为N的伪幸运数。
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2020-12-16 07:37:30 +00:00
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例如,N = 630是可接受的,因为它是偶数,并且其不同的素数因子是连续的素数2,3,5和7。 631之后的下一个质数是641; 因此,630的伪幸运数为M = 11。 还可以看到,16的伪幸运数字是3。
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2020-02-17 16:40:55 +00:00
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找到所有小于109的允许数字N的所有唯一伪幸运数字之和。
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2018-10-10 22:03:03 +00:00
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2020-12-16 07:37:30 +00:00
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# --hints--
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2018-10-10 22:03:03 +00:00
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2020-12-16 07:37:30 +00:00
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`euler293()`应该返回2209。
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2018-10-10 22:03:03 +00:00
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```js
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2020-12-16 07:37:30 +00:00
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assert.strictEqual(euler293(), 2209);
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2018-10-10 22:03:03 +00:00
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```
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2021-01-13 02:31:00 +00:00
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# --seed--
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## --seed-contents--
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```js
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function euler293() {
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return true;
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}
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euler293();
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```
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2020-12-16 07:37:30 +00:00
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# --solutions--
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2020-08-13 15:24:35 +00:00
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2021-01-13 02:31:00 +00:00
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```js
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// solution required
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```
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