27 lines
1.1 KiB
C
27 lines
1.1 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_is_prime.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <marvin@42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/08/05 10:54:36 by jhalford #+# #+# */
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/* Updated: 2016/08/07 17:42:09 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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int ft_is_prime(int nb)
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{
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int i;
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if ((nb % 2 == 0 && nb != 2) || nb <= 1)
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return (0);
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i = 3;
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while (i * i <= nb)
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{
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if ((nb % i) == 0)
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return (0);
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i += 2;
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}
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return (1);
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}
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