PRIME FACTORIZATION

Which of the following can be used to find or check for the factors of a number?

• by addition

• using divisibility rules

• by multiplying them

What is a prime number?

• a number with many factors

• a number whose factors are 1 and itself

• a number that can be divided by any number

Which is a prime number

• 3

• 9

• 10

If a number is not a prime number, what is it named?

• odd numbers

• composite numbers

• even numbers

What is prime factorization?

• multiplying a number by another number

• expressing a number as a result of multiplying by the prime factors

• finding all of the factors of a number

What is the recommended way to get the prime factorization of any composite number?

• factor tree method

• continuous subtraction

• repeated  multiplication

In finding the prime factorization of a given number using the factor tree method, one can start with any two factors of that number.

• TRUE

• FALSE

Using the factor tree method on a piece of paper, what is the prime factorization of the number 45?

• 2 x 3 x 5

• 3 x 3 x 5

• 3 x 5 x 5

Where else could you have started for 42?

• 6 x 8  and 12 X4

• 8 x 5 and 4 x 10

• 6 x 7 and 3 x 14