Factors of 15: The number 15 is

The number 15 is a composite number because 15 can be divided by one, by itself and at least by 3 and 5. A composite number is an integer that can be divided by at least another natural number, besides itself and 1, without leaving a remainder (divided exactly). The factorization or decomposition of 15 = 3•5. Notice that here, it is written in exponential form. The prime factors of 15 are 3 and 5. It is the list of the integer's prime factors. The number of prime factors of 15 is 2. Learn how to find the factors, pair factors, prime factors and prime factorisation of 15 with examples and video lesson. Also, check the common factors of 15 with other numbers and practice questions on factors of 15. Explore the factors of 15 and understand their role in mathematics. Learn how to determine the factors of 15 and their practical uses. Learn how to find the factors of 15 by division method and prime factorization. The factors of 15 are 1, 3, 5, and 15, and the prime factorization of 15 is 3 × 5.