Product of min and max prime factors: Difference between revisions

=={{header|Ruby}}==

<syntaxhighlight lang="ruby" line>require 'prime'

res = [1]+ (2..100).map{|n| n.prime_division.map(&:first).minmax.inject(&:*)}

res.each_slice(10){|slice| puts '%5d'*slice.size % slice}</syntaxhighlight>

{{out}}

<pre> 1 4 9 4 25 6 49 4 9 10

121 6 169 14 15 4 289 6 361 10

21 22 529 6 25 26 9 14 841 10

961 4 33 34 35 6 1369 38 39 10

1681 14 1849 22 15 46 2209 6 49 10

51 26 2809 6 55 14 57 58 3481 10

3721 62 21 4 65 22 4489 34 69 14

5041 6 5329 74 15 38 77 26 6241 10

9 82 6889 14 85 86 87 22 7921 10

91 46 93 94 95 6 9409 14 33 10</pre>