Prime and Composite Numbers

Find the prime number.

• 10

• 9

• 7

• 4

which number below is NOT prime?

• 7

• 9

• 2

• 3

What is a prime number?

• a number with ONLY two factors

• a number with LESS THAN two factors

• a number with ONLY one factor

• a number with MORE THAN two factors

What is a composite number?

• a number with ONLY TWO factors

• a number with LESS THAN TWO factors

• a number with MORE THAN TWO factors

• a number with ONLY ONE factor

Which list has ONLY prime numbers?

• 1, 2, 3

• 2, 3, 5

• 2, 3, 4

• 2, 4, 6

Which list has ONLY composite numbers?

• 8, 16, 24

• 2, 4, 6

• 5, 10, 15

• 3, 6, 9

Is 17 prime or composite?

• Prime

• Composite

Is 2 prime or composite?

• Prime

• Composite

Is 10 prime or composite?

• Prime

• Composite

Is 18 prime or composite?

• Prime

• Composite