The primary factors for 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. The number 70 can be expressed as a product of its prime factors 2, 5, and 7 is known as prime decomposition of 70. Such prime factors are the building blocks that compose the number 70. By performing the method of prime factorization on 70, we can determine that 2, 5, and 7 are its prime elements. Essentially, we are splitting down the number 70 into its constituent fundamental factors. Splitting the number 70 into its primary divisors 2, 5, and 7 is called the prime factorization of 70. By doing this we are expressing 70 as a multiplication of its fundamental elements.