The primary factorization of 70 is 2 x 5 x 7. Put simply, 70 can be expressed as a product of its primary elements which are 2, 5, and 7. The number 70 can be expressed as a result of its divisors 2, 5, and 7 is known as prime decomposition of 70. These prime factors are the building blocks that make up the number 70. By performing the method of finding the prime factors on 70, we can determine that 2, 5, and 7 are its prime elements. Basically, we are breaking down the number 70 into its constituent fundamental elements. Splitting the number 70 into its prime divisors 2, 5, and 7 is called finding the prime factors of 70. By doing this we are expressing 70 as a multiplication of its prime factors.