The primary factorization of 70 is 2 x 5 x 7. In other words, 70 can be expressed as a product of its prime elements which are 2, 5, and 7. The number 70 can be expressed as a result of its prime factors 2, 5, and 7 is known as prime decomposition 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. Basically, we are breaking down the number 70 into its constituent fundamental elements. Decomposing the number 70 into its primary factors 2, 5, and 7 is called finding the prime factors of 70. Performing this we are expressing 70 as a product of its prime factors.