Prime and Composite Quiz

What is a prime number?

• A prime number is a natural number that is divisible by 1 and itself.

• A prime number is a natural number that is divisible by 2 and itself.

• A prime number is a natural number that is divisible by 3 and itself.

• A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers.

Is 8 a prime number? (Yes/No)

• 10

• No

• 2

• Yes

What is the smallest prime number?

• 2

• 4

• 3

• 1

What is a composite number?

• A composite number is a positive integer greater than 1 that has more than two positive divisors.

• A composite number is a positive integer greater than 1 that has exactly two positive divisors.

• A composite number is a positive integer less than 1 that has more than two positive divisors.

• A composite number is a negative integer greater than 1 that has more than two positive divisors.

Is 5 a composite number? (Yes/No)

• No

• Sometimes

• Maybe

• Yes

What are the factors of 12?

• 1, 2, 3, 5, 6, 12

• 1, 2, 3, 4, 5, 12

• 1, 2, 3, 4, 5, 6

• 1, 2, 3, 4, 6, 12

What is the prime factorization of 24?

• 2 x 2 x 2 x 3

• 2 x 2 x 2 x 4

• 2 x 2 x 2 x 2

• 2 x 2 x 3 x 3

What is the largest prime factor of 36?

• 2

• 4

• 6

• 3

Is 37 a prime number? (Yes/No)

• Yes

• Sometimes

• Maybe

• No

What is the sum of all prime numbers between 1 and 10?

• 17

• 25

• 20

• 15