Find prime n such that reversed n is also prime: Difference between revisions
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Using the definition of is_prime at [[Erd%C5%91s-primes#jq]]: |
Using the definition of is_prime at [[Erd%C5%91s-primes#jq]]: |
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<lang jq># |
<lang jq># Generate a stream of reversible primes. |
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# If . is null the stream is unbounded; |
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# otherwise only integers less than . are considered. |
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def reversible_primes: |
def reversible_primes: |
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def r: tostring|explode|reverse|implode|tonumber; |
def r: tostring|explode|reverse|implode|tonumber; |
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389 |
389 |
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</pre> |
</pre> |
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=={{header|Julia}}== |
=={{header|Julia}}== |
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<lang julia>using Primes |
<lang julia>using Primes |
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