22 lines
358 B
PHP
22 lines
358 B
PHP
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<?php
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function is_Power_of_three($n)
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{
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$x = $n;
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while ($x % 3 == 0) {
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$x /= 3;
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}
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if($x == 1)
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{
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return "$n is power of 3";
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}
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else
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{
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return "$n is not power of 3";
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}
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}
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print_r(is_Power_of_three(9)."\n");
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print_r(is_Power_of_three(81)."\n");
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print_r(is_Power_of_three(21)."\n");
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?>
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