Prime Numbers & Prime Factorization

Is a whole number that has a value of greater than 1 and has only two factors:

1 and itself.

• Composite Number

• Prime Number

• Not a Prime Number

• Imaginary Number

Which is the lowest prime number?

• 1

• 3

• 5

• 2

Why is 9 a composite number?

• It has more than 2 factors.

• It has only 2 factors.

Which of the following is a prime number?

• 51

• 129

• 42

• 83

Which is the following are the prime factors of 335?

• 5 and 67

• 11 and 13

• 7 and 37

• 47 and 59

Which is the prime factorization of 42?

• 2 x 2 x 5 x 5

• 2 x 11 x 13

• 2 x 3 x 7

• 2 x 5 x 7

Which of the following is a composite number?

• 51

• 53

• 59

• 61