Erdős-primes: Difference between revisions
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Drkameleon (talk | contribs) (Added Arturo implementation) |
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:* the OEIS entry: [http://oeis.org/A064152 A064152 Erdos primes]. |
:* the OEIS entry: [http://oeis.org/A064152 A064152 Erdos primes]. |
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<br><br> |
<br><br> |
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=={{header|Arturo}}== |
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<lang rebol>factorials: map 1..20 => [product 1..&] |
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erdos?: function [x][ |
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if not? prime? x -> return false |
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loop factorials 'f [ |
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if f >= x -> break |
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if prime? x - f -> return false |
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] |
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return true |
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] |
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loop split.every:10 select 2..2500 => erdos? 'a -> |
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print map a => [pad to :string & 5]</lang> |
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{{out}} |
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<pre> 2 101 211 367 409 419 461 557 673 709 |
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769 937 967 1009 1201 1259 1709 1831 1889 2141 |
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2221 2309 2351 2411 2437</pre> |
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=={{header|AWK}}== |
=={{header|AWK}}== |
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Erdos prime 7875: 999721 |
Erdos prime 7875: 999721 |
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</pre> |
</pre> |
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=={{header|C++}}== |
=={{header|C++}}== |
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{{libheader|Primesieve}} |
{{libheader|Primesieve}} |
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