Prime Factorization Concepts

The video tutorial explains the concept of prime factorization using a factor tree. It demonstrates the process with two examples: the numbers 28 and 99. For 28, the factor tree shows that 2 times 2 times 7 equals 28, resulting in the prime factorization of 2 squared times 7. For 99, the factor tree shows that 3 times 3 times 11 equals 99, resulting in the prime factorization of 3 squared times 11. The video concludes with a reminder to subscribe to the channel for daily math and science videos.

What is the purpose of using a factor tree in prime factorization?

• To add numbers together

• To divide numbers into smaller parts

• To identify which prime numbers multiply to form the original number

• To find the sum of prime numbers

Which of the following is the correct prime factorization of 28?

• 4 x 7

• 2 x 3 x 7

• 2 x 14

• 2 x 2 x 7

In the factor tree for 28, which numbers are circled as prime?

• 2 and 14

• 2 and 7

• 14 and 7

• 28 and 2

What is the first step in finding the prime factorization of 99?

• Subtract 11

• Use 3 times 33

• Multiply by 11

• Divide by 2

Which of the following represents the prime factorization of 99?

• 3 x 33

• 3 x 3 x 11

• 9 x 11

• 3 x 11