Prime and Composite

What makes a number a composite number?

• It only has 2 factors 1 and itself.
• It is an even number.
  It is an odd number.
• Is is an odd number.
• It has more than two factors.

the only factors prime numbers have are:

• 0 and 1
• 0 and itself
• 1 and itself
• 1

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Which list is only composite numbers?

• 1, 3, 4
• 2, 4, 6
• 4, 6, 8
• 5, 6, 8

Find the prime number.

• 0
• 1
• 7
• 4

Which number below is a prime number?

• 1
• 0
• 2
• 9

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors 1 and its self.
  (1 and itself)

which number below is NOT prime?

• 7
• 9
• 2
• 3

Which number is prime?

• 9
• 5
• 0
• 1

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4