Factors, multiples, prime, and composite

Which of the following lists all the factors of fifteen?

• 1, 2, 3, 5, 8, 10, 15

• 1, 3, 5, 15

• 1, 5, 10, 15

• 1, 5, 15

Tags

CCSS.4.OA.B.4

Which of these is not a multiple of six?

• 18

• 30

• 42

• 56

Tags

CCSS.4.OA.B.4

Lisa wants to perform a violin recital of pieces by her favorite composers. She wants to play the same number of songs from each composer. If Lisa performs twelve songs in her recital, how many songs by each composer might she perform?

• 4 songs

• 5 songs

• 7 songs

• 24 songs

Mrs. Hughes wrote four numbers on the board and asked her students to select the number that is both a factor of 24 and a multiple of four. Which number should the students select?

• 2

• 6

• 8

• 16

Tags

CCSS.4.OA.B.4

Which list contains only multiples of seven?

• 7, 28, 49, 56, 70

• 1, 7

• 14, 24, 42, 63

• 1, 7, 14, 28

The array proves that ___ is a factor of ____.

• 5 ; 20

• 4 ; 25

• 25 ; 5

• 5 ; 25

Tags

CCSS.4.OA.B.4

Four students each wrote down a number between 30 and 40. The list shows the numbers they wrote.

• Elly—35

• Ulysses—39

• Maggie—37

• Palmer—33

Which student wrote down a prime number?

• A Elly

• B Ulysses

• C Maggie

• D Palmer

Tags

CCSS.4.OA.B.4

Jaylen was told to list all prime numbers between 30 and 50. Jaylen’s list is shown.

31, 37, 41, 47

Which prime number is missing from Jaylen’s list?

• A 49

• B 39

• C 43

• D 33

Tags

CCSS.4.OA.B.4

A composite number has more than _____ factors.

• 3

• 2

• 0

• 4

Tags

CCSS.4.OA.B.4

Brenda said that the number 2 is prime because it has only two factors. Carla said that the number 2 is composite because it is even, and all even numbers are composite. Who is correct?

• A Brenda is correct.

• B Carla is correct.

• C Both of them are correct.

• D Neither of them is correct.

Tags

CCSS.4.OA.B.4