Long primes: Difference between revisions

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=={{header|Common Lisp}}==
=={{header|Common Lisp}}==
{{trans|Raku}}
{{trans|Raku}}
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<lang lisp>; Primality test using the Sieve of Eratosthenes with a couple minor optimizations
<lang lisp>
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; Primality teste using the Sieve of Eratosthenes with a couple minor optimizations
(defun primep (n)
(defun primep (n)
(cond ((and (<= n 3) (> n 1)) t)
(cond ((and (<= n 3) (> n 1)) t)
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