The prime factorization of 80 is written as 24 × 51.
To find this, we start by dividing 80 by the smallest prime number, which is 2:
- 80 ÷ 2 = 40
- 40 ÷ 2 = 20
- 20 ÷ 2 = 10
- 10 ÷ 2 = 5
- 5 is a prime number, so we stop here.
Now, we can express 80 as a product of its prime factors:
- 80 = 2 × 2 × 2 × 2 × 5
Since there are four 2s, we can write this in exponential form as 24 and since there is one 5, we write it as 51. Thus, the prime factorization of 80 is:
24 × 51