Perfect totient numbers: Difference between revisions
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=={{header|RPL}}== |
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{{works with|HP|49}} |
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« 0 OVER |
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'''WHILE''' DUP 1 ≠ '''REPEAT''' |
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EULER SWAP OVER + SWAP |
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'''END''' DROP == |
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» '<span style="color:blue">PTOT?</span>' STO |
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« → n |
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« { } 1 |
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'''WHILE''' n '''REPEAT''' |
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'''IF''' DUP <span style="color:blue">PTOT?</span> '''THEN''' |
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SWAP OVER + SWAP |
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'n' 1 STO- |
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'''END''' |
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2 + <span style="color:grey">@ Perfect totient numbers are odd</span> |
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'''END''' DROP |
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» » '<span style="color:blue">TASK</span>' STO |
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20 <span style="color:blue">TASK</span> |
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{{out}} |
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<pre> |
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1: { 3 9 15 27 39 81 111 183 243 255 327 363 471 729 2187 2199 3063 4359 4375 5571 } |
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=={{header|Ruby}}== |
=={{header|Ruby}}== |
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<syntaxhighlight lang="ruby">require "prime" |
<syntaxhighlight lang="ruby">require "prime" |
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<pre>3, 9, 15, 27, 39, 81, 111, 183, 243, 255, 327, 363, 471, 729, 2187, 2199, 3063, 4359, 4375, 5571 |
<pre>3, 9, 15, 27, 39, 81, 111, 183, 243, 255, 327, 363, 471, 729, 2187, 2199, 3063, 4359, 4375, 5571 |
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</pre> |
</pre> |
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=={{header|Rust}}== |
=={{header|Rust}}== |
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