A prime number has exactly ___ factors.

Two factors: 1 and itself.

True or False: The number 1 is considered a prime number.

False. The number 1 is neither prime nor composite.

Fill in the blank: A composite number is a whole number greater than 1 that has ___ than two factors.

More

Which number is the only even prime number?

2

Identify the factors of 15.

1, 3, 5, and 15.

Riddle: I am a number that is greater than 1 and has no factors other than 1 and myself. What am I?

A prime number.

Is the number 18 prime or composite?

Composite, because it has factors 1, 2, 3, 6, 9, and 18.

True or False: All even numbers are prime.

False. Only the number 2 is an even prime number.

Fill in the blank: The factors of 12 are ___, ___, ___, ___, ___, and ___

1, 2, 3, 4, 6, and 12.

What is the result of finding the prime factorization of 30?

2 × 3 × 5.

How many factors does the number 21 have?

Four factors: 1, 3, 7, and 21.

Riddle: I am a number that can be divided evenly by 2, 3, and 6. What am I?

A composite number.

True or False: The number 11 is a composite number.

False. The number 11 is a prime number.

Determine whether 25 is prime or composite.

Composite, because it has factors 1, 5, and 25.

Fill in the blank: All composite numbers can be expressed as a product of ___ numbers.

Prime

What are the factors of 36?

1, 2, 3, 4, 6, 9, 12, 18, and 36.

Riddle: I am a number that is odd and cannot be divided by any number other than 1 and myself. What am I?

A prime number.

Fill in the blank: The number ___ has exactly two factors and is the smallest prime number.

2

Is 39 a prime or composite number?

Composite, because it has factors 1, 3, 13, and 39.

True or False: 14 can be classified as a prime number.

False. The number 14 is a composite number.