솔루션 const solution = (a, b) => { const getGCD = (a, b) => { let gcd = 1; for (let i = 1; i { let pFactors = []; for (let i = 2; i 2) pFactors = [...pFactors, num]; return pFactors; }; const answer = getPrimeFactors(b / getGCD(a, b)).find( (n) => n !== 2 && n !== 5 ) ? 2 : 1; console.log(answer); return answer; };