Find prime n such that reversed n is also prime: Difference between revisions
Find prime n such that reversed n is also prime (view source)
Revision as of 18:40, 28 February 2023
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=={{header|Ruby}}==
<syntaxhighlight lang="Ruby">p Prime.each(500).select{|pr| pr.digits.join.to_i.prime? }
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{{out}}
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[2, 3, 5, 7, 11, 13, 17, 31, 37, 71, 73, 79, 97, 101, 107, 113, 131, 149, 151, 157, 167, 179, 181, 191, 199, 311, 313, 337, 347, 353, 359, 373, 383, 389]
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=={{header|Rust}}==
<syntaxhighlight lang="Rust">
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