Factors, Primes and Factor Trees

List all the factors of 29.

• 29 does not have any factors.

• 1, 29

• 29

Tags

CCSS.4.OA.B.4

How many factors does the number 123 have?

• 4

• 3

• 2

Tags

CCSS.4.OA.B.4

What is the smallest prime number?

• 1

• 2

• 3

Tags

CCSS.4.OA.B.4

Which of the following are the prime factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24

• 1, 2, 3

• 2, 3

How many prime numbers are there between 30 and 40?

• 2

• 3

• 4

Tags

CCSS.4.OA.B.4

The sum of two prime numbers, each greater than 10, is

• always even.

• always odd.

• sometimes even and sometimes odd.

Tags

CCSS.3.OA.D.9

What is the smallest composite number with exactly three different factors?

• 3

• 4

• 24

Tags

CCSS.4.OA.B.4

The product of two composite numbers, each greater than 10, is

• always even.

• always odd.

• sometimes even and sometimes odd.

Tags

CCSS.3.OA.D.9

The product of two different composite numbers, each greater than 10 but less than 20.

• always even.

• always odd.

• sometimes even and sometimes odd.

Tags

CCSS.3.OA.D.9

Which of the following is true about the numbers 0 and 1?

• 0 is composite and 1 is prime.

• 0 is composite and 1 is neither prime nor composite.

• Neither number is prime or composite.

Tags

CCSS.4.OA.B.4