Factors or Multiples

Jackson Stationery sells cards in packs of 11 and envelopes in packs of 13. If Kina wants to buy the same number of each, what is the minimum number of cards that she will have to buy?

• Factors

• Multiples

Multiple of 8

• 30

• 35

• 40

• 45

Multiple of 9

• 46

• 55

• 64

• 72

Factor of 15

• 2

• 3

• 4

• 7

Multiple of 13

• 12

• 13

• 14

• 15

Factor pair of 42

• 2 and 21

• 3 and 15

• 4 and 10

• 5 and 9

Multiple of 14

• 29

• 41

• 56

• 139

Factor pair for 30

• 1 and 10

• 2 and 15

• 3 and 9

• 4 and 8

Multiple of 12

• 45

• 48

• 49

• 50

Factor of 20

• 10

• 3

• 12

• 7