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 that 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. These divisors are the fundamental components that compose the number 70. By performing the process of finding the prime factors on 70, we can determine that 2, 5, and 7 are its prime factors. Basically, we are breaking down the number 70 into its component fundamental elements. Splitting the number 70 into its prime factors 2, 5, and 7 is called finding the prime factors of 70. This process we are representing 70 as a product of its prime factors.