Question

Write the prime factorization of 80

Hint: draw a factor tree and determine your prime factors for #'s 1-3

Find the greatest common factor of 18 and 66
Hint: draw a factor tree and determine your prime factors for #'s 1-3
Find the least common multiple of

Answer 1

The prime factorization of 80 is 2 × 2 × 2 × 2 × 5.

Step-by-step explanation:

To find the prime factorization of 80, we can start by dividing it by the smallest prime number, which is 2. We get 80 ÷ 2 = 40. Now we repeat the process with the quotient, 40. We divide 40 by 2 again, resulting in 40 ÷ 2 = 20. Continuing this process, we divide 20 by 2, giving us 20 ÷ 2 = 10.

Finally, we divide 10 by 2 to get 10 ÷ 2 = 5, which is a prime number. Therefore, the prime factorization of 80 is 2 × 2 × 2 × 2 × 5.