Because 2 is a prime number. 2 x 2 is the prime factorization of 4. 2 x 2 x 2 is the prime factorization of 8. 2 x 2 x 2 x 2 is the prime factorization of 16, and so on.

The prime factorization of 122 is: 2 × 61 The prime factorization of 35 is: 5 × 7 The prime factorization of 120 is: 2 × 2 × 2 × 3 × 5 The prime factorization of 15 is: 3 × 5

5 and 2 are prime numbers, and thus can't be factorized any further. So the prime factorization of 5 would be 5, and the prime factorization of 2 would be 2. :)

Prime factorization is the finding which prime number multiply to get to make the original number. Factors of 4: 1, 2, 4 Prime Factorization: 2 2 x 2 = 4

58=2*29; both 2 and 29 are prime, thus this is the prime factorization. In general, a prime factorization is a list of primes that comprise the number. For instance, 100: 100=2*50=2*2*25=2*2*5*5 => prime factorization is 2^2*5^2

All even numbers are multiples of 2, so they have 2 in their prime factorization. No odd numbers are divisible by 2, so no add number has 2 in its prime factorization.

A prime factorization is the unique way to list any integer greater than 1 as a product of prime numbers. An example of the prime factorization of a composite number is 20=2*2*5 or 20=2^2*5. The prime factorization of a prime number is itself. e.g. 11=11.

Prime factorization is factoring a number down to its prime numbers. Example: Prime factorization of 12 : 12 3 x 4 3 x 2 x 2 ^ That is a factor tree which shows the prime factorization

Prime Factorization A factorization is prime when all the factors are prime numbers (those which only have itself and 1 as factors). For example, 2 X 4 and 2 X 2 X 2 are both factorizations of 8. Only 2 X 2 X 2 is a prime factorization because 2 X 4 includes the composite number 4.