The main factors for 70 is 2 x 5 x 7. In other words, 70 can be expressed as a product of its prime elements that are 2, 5, and 7. The number 70 can be expressed as a product of its divisors 2, 5, and 7 is known as the prime factorization of 70. These prime factors are the building blocks that compose the number 70. By performing the method of finding the prime factors on 70, we can determine that 2, 5, and 7 are its main factors. Essentially, we are breaking down the number 70 into its constituent prime factors. Splitting 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.