The main factors 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 divisors 2, 5, and 7 is known as prime decomposition of 70. Such prime factors are the fundamental components 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 prime factors. Basically, we are splitting down the number 70 into its component fundamental elements. Breaking down the number 70 into its prime divisors 2, 5, and 7 is called the prime factorization of 70. By doing this we are expressing 70 as a product of its prime factors.