Quad-power prime seeds: Difference between revisions
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(→{{header|ALGOL 68}}: should have mentioned the primes library...) |
Thundergnat (talk | contribs) m (→{{header|Raku}}: extend out to 10 million) |
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<lang perl6>use Lingua::EN::Numbers; |
<lang perl6>use Lingua::EN::Numbers; |
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my @qpps = lazy (1..*).hyper(: |
my @qpps = lazy (1..*).hyper(:5000batch).grep: -> \n { my \k = n + 1; (n+k).is-prime && (n²+k).is-prime && (n³+k).is-prime && (n⁴+k).is-prime } |
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say "First fifty quad-power prime seeds:\n" ~ @qpps[^50].batch(10)».&comma».fmt("%7s").join: "\n"; |
say "First fifty quad-power prime seeds:\n" ~ @qpps[^50].batch(10)».&comma».fmt("%7s").join: "\n"; |
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say "\nFirst quad-power prime seed greater than:"; |
say "\nFirst quad-power prime seed greater than:"; |
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for 1.. |
for 1..10 { |
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my $threshold = Int(1e6 |
my $threshold = Int(1e6 × $_); |
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my $key = @qpps.first: * > $threshold, :k; |
my $key = @qpps.first: * > $threshold, :k; |
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say "{$threshold.&cardinal.fmt: '%13s'} is the {ordinal-digit $key + 1}: {@qpps[$key].&comma}"; |
say "{$threshold.&cardinal.fmt: '%13s'} is the {ordinal-digit $key + 1}: {@qpps[$key].&comma}"; |
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three million is the 319th: 3,005,316 |
three million is the 319th: 3,005,316 |
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four million is the 383rd: 4,004,726 |
four million is the 383rd: 4,004,726 |
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five million is the 452nd: 5,023,880 |
five million is the 452nd: 5,023,880 |
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six million is the 514th: 6,000,554 |
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seven million is the 567th: 7,047,129 |
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eight million is the 601st: 8,005,710 |
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nine million is the 645th: 9,055,151 |
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ten million is the 701st: 10,023,600</pre> |
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=={{header|Wren}}== |
=={{header|Wren}}== |
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