The primary factorization of 70 is 2 x 5 x 7. Put simply, 70 can be expressed as a product of its primary elements that are 2, 5, and 7. 70 can be written as a product of its prime factors 2, 5, and 7 is known as the prime factorization of 70. Such divisors are the building blocks that make up the number 70. By performing the process of finding the prime factors on 70, we can determine that 2, 5, and 7 are its main factors. In essence, we are splitting down the number 70 into its constituent prime factors. Decomposing the number 70 into its primary divisors 2, 5, and 7 is called finding the prime factors of 70. By doing this we are representing 70 as a product of its prime factors.