Help to write the code that checks for the fact that the number is a natural degree of the three. For example, the number 27 is the third degree: 3 ^ 3, and 81 is the fourth: 3 ^ 4.

Closed due to the fact that the essence of the question is unclear by the participants Igor , Kromster , Air , 0xdb , freim 24 Apr at 11:37 .

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1 answer 1

Possible through recursion

const isPowerOfThree = (num) => { const findPowerOfThree = (num) =>{ if(num%3 !== 0 || num <= 1) return 0; return 1 + findPowerOfThree(num/3); } return 3**findPowerOfThree(num) === num; } console.log(isPowerOfThree(81)) // true 3^4