The main factors for 70 is 2 x 5 x 7. In other words, 70 can be expressed as a product of its primary elements which are 2, 5, and 7. The number 70 can be expressed as a product of its prime factors 2, 5, and 7 is known as the prime factorization of 70. Such prime factors are the building blocks that form the number 70. By performing the method of prime factorization on 70, we can determine that 2, 5, and 7 are its main elements. In essence, we are breaking down the number 70 into its component fundamental factors. Breaking down the number 70 into its primary factors 2, 5, and 7 is called the prime factorization of 70. By doing this we are representing 70 as a product of its prime factors.