Summit Factors and Multiples End of Unit Assessment

Is 36 Prime or Composite?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

Is 43 a prime or composite number?

• Prime because 43x1 is the only factor pair

• Prime because there are only three factors

• Composite because there are three or more factors

• Composite because of factor pairs 43x1 and 6x7

Tags

CCSS.4.OA.B.4

Is 49 prime or composite?

• Prime because there are only one pair of factors

• Prime because 49 x 1 is the only factor pairs

• Composite because there are five factors

• Composite because 7 x 7 and 49 x 1 are the factor pairs

Tags

CCSS.4.OA.B.4

Select all of the true statements

• 8 is a factor of 30

• 18 is a multiple of 3

• 4 is a factor of 72

• The factor pairs of 26 are 1 and 26, 2 and 13, and 6 and 4.

• The only factors of 19 are 1 and 19.

Tags

CCSS.4.OA.B.4

Select all of the factors that 15 and 27 have in common.

• 1

• 2

• 3

• 4

• 5

Find all factor pairs of 92 using a factor rainbow

Tags

CCSS.4.OA.B.4

Charlie is sorting her trading card collection. When she sorts her cards into 3 piles, each pile contains the same number of cards. Could there be 56 cards? Explain or show your reasoning.

• Yes because 3 is a factor of 56

• No, because 3 is not a factor of 56

• Yes because 56 is a factor of 3

• No because 56 is not a factor of 56

Tags

CCSS.4.OA.B.4

Charlie is sorting her trading card collection. When she sorts her cards into 4 piles, each pile contains the same number of cards. Could there be 56 cards? Explain or show your reasoning.

• Yes because 4 is a factor of 56

• No, because 4 is not a factor of 56

• Yes because 56 is a factor of 4

• No, because 56 is not a factor of 4

Tags

CCSS.4.OA.B.4

Charlie is sorting her trading card collection. When she sorts her cards into 7 piles, each pile contains the same number of cards. How many cards could there be? Explain or show your reasoning.

• There could be 1 and 7 because those are factors of 7

• There could be any factor of 7

• Skip count by 7's

• 7, 14, 21, 28.... any multiple of 7

Tags

CCSS.5.OA.B.3