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Challenges

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Challenges Prime Difference

Given an integer n, output the smallest prime such that the difference between it and the next prime is at least n. For example, if n=5, you would output 23, since the next prime is 29, and 29-23&...

8 answers  ·  posted 4y ago by Quintec‭  ·  last activity 3y ago by radarek‭

Question code-golf
#4: Post edited by user avatar General Sebast1an‭ · 2021-08-12T19:02:43Z (about 3 years ago)
Prime Difference
  • Given an integer *n*, output the smallest prime such that the difference between it and the next prime is at least *n*.
  • For example, if `n=5`, you would output `23`, since the next prime is `29`, and `29-23>=5`.
  • # More Input/Output Examples
  • 1 -> 2 (3 - 2 >= 1)
  • 2 -> 3 (5 - 3 >= 2)
  • 3 -> 7 (11 - 7 >= 3)
  • 4 -> 7
  • 5 -> 23
  • 6 -> 23
  • 7 -> 89
  • 8 -> 89
  • This is code-golf, so shortest code wins.
  • Given an integer *n*, output the smallest prime such that the difference between it and the next prime is at least *n*.
  • For example, if `n=5`, you would output `23`, since the next prime is `29`, and `29-23>=5`.
  • # More Input/Output Examples
  • 1 -> 2 (3 - 2 >= 1)
  • 2 -> 3 (5 - 3 >= 2)
  • 3 -> 7 (11 - 7 >= 3)
  • 4 -> 7
  • 5 -> 23
  • 6 -> 23
  • 7 -> 89
  • 8 -> 89
  • This is <a class="badge is-tag">code-golf</a>, so shortest code wins.
#3: Question reopened by user avatar Quintec‭ · 2020-12-10T21:03:41Z (almost 4 years ago)
#2: Question closed by user avatar Quintec‭ · 2020-12-10T21:03:35Z (almost 4 years ago)
#1: Initial revision by user avatar Quintec‭ · 2020-11-14T17:16:19Z (almost 4 years ago)
Prime Difference
Given an integer *n*, output the smallest prime such that the difference between it and the next prime is at least *n*.

For example, if `n=5`, you would output `23`, since the next prime is `29`, and `29-23>=5`.

# More Input/Output Examples

    1 -> 2 (3 - 2 >= 1)
    2 -> 3 (5 - 3 >= 2)
    3 -> 7 (11 - 7 >= 3)
    4 -> 7
    5 -> 23
    6 -> 23
    7 -> 89
    8 -> 89

This is code-golf, so shortest code wins.