Find whether a given integer is a power of 3 or not | Returns true if n is power of 3 , else false ; The maximum power of 3 value that integer can hold is 1162261467 ( 3 ^ 19 ) . ; Driver code
function check ( n ) { return 1162261467 % n == 0 ; } let n = 9 ; if ( check ( n ) ) document . write ( " " ) ; else document . write ( " " ) ;