20/2=10/2=5 5*2*2 equals prime factorization of 20.
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.
The prime factorization of 40 is 2 X 2 X 2 X 5 or 2^3 x 5. To find the prime factorization of 40, find the lowest prime factor that will divide into 40. That number is 2, and 2 X 20 equals 40. 2 is prime, so it is one of the factors. 20 is a composite number, so must be factored. The lowest prime number that will divide evenly into 20 is 2. 2 X 10 equals 20. Another 2 is in the prime factorization, so you have 2 X 2 X 10. Ten is not a prime number, so the factoring has to continue. 2 X 5 equals 10. both numbers are prime, so now all you have to do is write out the factorization.
The prime factorization of 20 is: 2 × 2 × 5
The only even prime number is 2. It happens twice in the prime factorization of 20.
Prime factorization of 20 in exponential form is: 22x5
2 x 2 x 5 = 20
24
2 x 2 x 5
Prime Factorization:20 = 2 * 2 * 530 = 2 * 3 * 5
The prime factorization of 20 is 5x2x2 or 5 x 2^2 20=2^2*5
2*2*5 = 20