Factors, Multiples, & Prime Numbers Review

Annabel and Tiago are trying to figure out the factors of 14. Can you help them?

• 1,14

• 1, 2, 7, 14

• 2, 7

Answer explanation

The factors of 14 are the numbers that divide it evenly. These include 1, 2, 7, and 14. Therefore, the correct answer is 1, 2, 7, 14.

Tags

CCSS.4.OA.B.4

Hey math whizzes! Camila, Aaron, and Apollo are trying to figure out the factors of 24. Can you help them out?

• 1, 2, 3, 8, 12, 24

• 2, 3, 4, 6, 8, 12

• 1, 2, 3, 4, 6, 8, 12, 24

Answer explanation

The factors of 24 are all the integers that can divide 24 without leaving a remainder. These include 1, 2, 3, 4, 6, 8, 12, and 24, making the correct choice 1, 2, 3, 4, 6, 8, 12, 24.

Tags

CCSS.4.OA.B.4

Amaia and Tiago are playing a game. Can you help them choose the correct list of the first six multiples of 10?

• 1, 2, 5, 10

• 10, 20, 30, 40, 50, 60

• 5, 10, 15, 20, 25

• 10, 20, 30, 40, 50

Answer explanation

The first six multiples of 10 are obtained by multiplying 10 by the integers 1 through 6, resulting in 10, 20, 30, 40, 50, and 60. Thus, the correct choice is 10, 20, 30, 40, 50, 60.

Preston and Camila are playing a game with multiples of 6. Can you help them choose the correct list of the first six multiples of 6?

• 6, 12, 18, 30, 36, 42

• 6, 14, 22, 28, 34

• 6, 12, 18, 24, 30, 36

• 1, 2, 3, 6

Answer explanation

The first six multiples of 6 are obtained by multiplying 6 by the integers 1 through 6: 6x1=6, 6x2=12, 6x3=18, 6x4=24, 6x5=30, and 6x6=36. Thus, the correct list is 6, 12, 18, 24, 30, 36.

Hey there! Camila, Ulises, and Arantza are playing a game. Can you help them by listing the first 5 multiples of 3?

• 1,3,6,9,12

• 3,6,9,12,15

• 6,9,12,15,18

• 0,3,6,9,12

Answer explanation

The first 5 multiples of 3 are obtained by multiplying 3 by the integers 1 through 5. This gives us 3, 6, 9, 12, and 15, making the correct answer choice 3,6,9,12,15.

Tiago and Sophia are playing a game where they need to list the first 5 multiples of 12. Can you help them out?

• 1,12,24,36,48

• 0,12,14,36,48

• 12,24,36,48,60

• 12,24,36,48,60,72

Answer explanation

The first 5 multiples of 12 are calculated by multiplying 12 by the integers 1 through 5. This gives us 12, 24, 36, 48, and 60, making the correct answer 12, 24, 36, 48, 60.

Max and Riley are playing a number game. Can you help them figure out which number is a factor of 10?

• 3

• 4

• 5

• 8

Answer explanation

A factor of a number divides it evenly without leaving a remainder. Since 10 divided by 5 equals 2 with no remainder, 5 is a factor of 10. The other options do not divide 10 evenly.

Tags

CCSS.4.OA.B.4

CJ, Ruth, and Yaeniel are playing a number game. Can you help them figure out which number is a factor of 24?

• 9

• 7

• 11

• 12

Answer explanation

A factor of a number divides it evenly. 24 divided by 12 equals 2, with no remainder, making 12 a factor of 24. The other options (9, 7, 11) do not divide 24 evenly.

Tags

CCSS.4.OA.B.4

Khloe and Samuel are playing a math game. Can you help them figure out which is NOT a factor of 9?

• 0

• 1

• 3

• 9

Answer explanation

0 is not a factor of 9 because factors are numbers that divide evenly into another number. Since dividing 9 by 0 is undefined, 0 cannot be a factor. The factors of 9 are 1, 3, and 9.

Tags

CCSS.4.OA.B.4

Amelia and Jaybin are having a debate about prime numbers. Can you help them figure out the correct definition? A prime number is...

• a number that has only one factor.

• a number that has at least two factors.

• a number that has more than two factors.

• a number that has only two factors.
  (1 and itself)

Answer explanation

A prime number is defined as a number that has only two factors: 1 and itself. This distinguishes it from composite numbers, which have more than two factors. Therefore, the correct choice is 'a number that has only two factors.'

Tags

CCSS.4.OA.B.4