The primary factors of 70 is 2 x 5 x 7. In other words, 70 can be expressed as a product of its prime factors which are 2, 5, and 7. Expressing 70 as a product of its prime factors 2, 5, and 7 is known as prime decomposition of 70. Such divisors are the building blocks that compose the number 70. By performing the process of prime factorization on 70, we can determine that 2, 5, and 7 are its main elements. Essentially, we are breaking down the number 70 into its component prime elements. Splitting the number 70 into its prime divisors 2, 5, and 7 is called the prime factorization of 70. By doing this we are expressing 70 as a multiplication of its prime factors.