The primary factors of 70 is 2 x 5 x 7. Put simply, 70 can be expressed as a product of its prime elements which are 2, 5, and 7. 70 can be written as a product of its prime factors 2, 5, and 7 is known as prime decomposition of 70. Such divisors are the fundamental components that form 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. Essentially, we are splitting down the number 70 into its component prime factors. Breaking down the number 70 into its prime divisors 2, 5, and 7 is called finding the prime factors of 70. Performing this we are representing 70 as a product of its prime factors.