Eureka Prime, Composite, Factors, and Multiples

What is the greatest multiple of 6 that is less than 57?

• 57

• 56

• 55

• 54

What are the factors of 2?

• 1

• 1, 2

• 2, 4, 6, 8, 10, 12, 14, 16, 18, 20. . .

• 1, 2, 4

Is 2 prime or composite?

• Prime

• Composite

What are the factors of 10?

• 1, 2

• 1, 2, 10

• 1, 2, 5, 10

• 10, 20, 30, 40, 50, 60, 70, 80, 90, 100. . .

Is 10 prime or composite?

• Prime

• Composite

What are the factors of 18?

• 1, 2, 3, 6, 18

• 1, 2, 3, 9, 18

• 1, 2, 3, 6, 9, 18

• 18, 36, 54, 72, 90. . .

Is 18 prime or composite?

• Prime

• Composite

What are the factors of 17?

• 1, 17

• 1, 3, 17

• 2, 17

• 17, 34, 51, 68, 85, 102. . .

Is 17 prime or composite?

• Prime

• Composite

• 80

• 800

• 900

• 9000

• 1,100