Prime Factors

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

100

• Prime
• Composite

17

• Prime
• Composite

What are all prime numbers divisible by?

• 1, 2, and itself
• 1 and itself
• Every number from 1-10
• They aren't divisable at all

Number 27 is both ...

• even and composite
• odd and composite
• even and prime
• odd and prime

What is the prime factor of 36?

• 2x2x3x2

• 2x2x3x3

• 3x2x3x4

• 4x9

What is the prime factor of 99?

• 9x11

• 11x9x3

• 3x3x11

• 3x9