Palindromic primes: Difference between revisions
→{{header|jq}}
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In this entry, we define both a naive generate-and-test generator of the palindromic primes,
and a more sophisticated one that is well-suited for generating very large numbers of such primes
For a suitable implementation of `is_prime` as used here, see [[Erd%C5%91s-primes#jq]].
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emit_until(. >= 1000; palindromic_primes),
((100000,
| "\nNumber of palindromic primes <= \($n): \(count(emit_until(. >= $n; palindromic_primes)))" )
</lang>
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Number of palindromic primes <= 100000: 113
Number of palindromic primes <=
</pre>
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