The primary factors for 70 is 2 x 5 x 7. In other words, 70 can be expressed as a product of its primary factors that are 2, 5, and 7. Expressing 70 as a product of its prime factors 2, 5, and 7 is known as the prime factorization of 70. These prime factors are the building blocks that make up 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 splitting down the number 70 into its component prime elements. Breaking down 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.