Prime and Composite Numbers

Front

Is 3 a factor of 12?

Back

yes

Front

Besides 15 and 1, what is one factor of 15? Options: 2, 4, 6, 3

Back

3

Front

What do we call the answer to a multiplication question? Options: sum, difference, quotient, product

Back

product

Front

Which of the following is NOT true about prime numbers? Options: They have exactly two factors, 1 is a factor of every prime number, No prime numbers end in zero, All prime numbers are odd numbers.

Back

All prime numbers are odd numbers.

Front

Which number is NOT a factor of 18? Options: 2, 3, 5, 9

Back

5

Front

Is 33 a prime or composite number?

Back

Composite

Front

Use a factor tree to find prime factorization of 24.

Back

2 x 3 x 2 x 2

Front

Which of the following is NOT prime?

11

,

13

,

19

,

21

Back

21

Front

Use a factor tree to find the prime factorization of 60.

Back

2 x 3 x 2 x 5

Front

Use a factor tree to find the prime factorization of 45

Back

2 x 3 x 5