👉 In mathematics, a "fifteen" is a number that has exactly 15 divisors. This means that it can be expressed as a product of prime numbers in two different ways: \(15 = p_1^{a_1} \cdot p_2^{a_2}\), where \(p_1\) and \(p_2\) are distinct primes, and \(a_1\), \(a_2\), and \(b_3\) are non
