5.3 Prime, Composite, Even, Odd Review

Which of the houses has an even number as its address?

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• 
• 
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Which list of numbers are all prime numbers?

• 2, 3, 9, 25

• 2, 3, 5, 11

• 2, 3, 7, 9

• 3, 5, 11, 15

Answer explanation

2, 3, 5, 11 are all prime numbers because they have exactly TWO factors - 1 and itself!

All of the other numbers have more than 2 factors!

Tags

CCSS.4.OA.B.4

Which statement is true about the number 1?

• The number one is composite.

• The number one has infinite factors.

• The number one is divisible by all numbers.

• The number one has only 1 factor and is neither prime nor composite.

Tags

CCSS.4.OA.B.4

The numbers in Hugo's address are all prime numbers. Which address could be Hugo's?

• 2385 Grape St.

• 4623 Orange Ave.

• 5732 Cherry Blvd.

• 7239 Lime Rd.

Answer explanation

5,7,3, and 2 are all prime numbers! They all have exactly 2 factors - 1 and itself!

The other addresses have composite numbers, which have more than 2 factors.

Tags

CCSS.4.OA.B.4

Which of the following is true about the number 35?

• It is both odd and prime.

• It is both even and prime.

• It is both even and composite.

• It is both odd and composite.

Tags

CCSS.4.OA.B.4

Are the numbers below prime or composite?

9 , 10, 15, 21

(a)  

Tags

CCSS.4.OA.B.4

Which of the following statements is true?

• even number + even number = even number

• odd number + even number = even number

• odd number x odd number = even number

• even number x odd number = odd number

Tags

CCSS.3.OA.D.9

A (a)   number is a number that has exactly two factors - 1 and itself.

Tags

CCSS.4.OA.B.4

A (a)   number is a number that has more than 2 factors.

Tags

CCSS.4.OA.B.4