Primality by trial division: Difference between revisions
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=={{header|Common Lisp}}== |
=={{header|Common Lisp}}== |
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(defun primep (a) |
(defun primep (a) |
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(cond ((= a 2) T) |
(cond ((= a 2) T) |
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((or (<= a 1) (= (mod a 2) 0)) nil) |
((or (<= a 1) (= (mod a 2) 0)) nil) |
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