Prime Factor

Tree

next 6.NS#4

© Math As A Second Language All Rights Reserved

© Math As A Second Language All Rights Reserved

next

Directions for the Teacher

Review Prime Factorization with your students.

Have students find the prime factors of the given values

on a piece of paper.

next

© Math As A Second Language All Rights Reserved

next

Directions for the Teacher

Check the students work by clicking the mouse when next

appears.

Remind students that it is possible to start with different factors,

but there is only one set of prime factors.

next

18

3 × 6

3 × 3 × 2

nextnextnextnext

The prime factors for 18 are…

3 × 3 × 2

next

© Math As A Second Language All Rights Reserved

15

3 × 5

nextnextnext

The prime factors for 15 are…

3 × 5© Math As A Second Language All Rights Reserved

24

6 × 4

3 × 2 × 2 × 2

nextnextnextnext

The prime factors for 24 are…

3 × 2 × 2 × 2

next

© Math As A Second Language All Rights Reserved

36

9 × 4

3 × 3 × 2 × 2

nextnextnextnext

The prime factors for 36 are…

3 × 3 × 2 × 2

next

© Math As A Second Language All Rights Reserved

24

3 ×

3 × 2 ×

nextnextnextnext

The prime factors for 24 are…

3 × 2 × 2 × 2

next

3 × 2 × 2

next

×

8

4

2

next

© Math As A Second Language All Rights Reserved

© Math As A Second Language All Rights Reserved

next

Directions for the Teacher

On the following slides the students may click on the textbox

and then type in their answer.

Click outside the box and then click again to proceed each

time next appears.

next

16

4 ×

2 × 2 ××

nextnextnextnext

The prime factors for 16 are…

2 × 2 × 2 × 2

nextnext

© Math As A Second Language All Rights Reserved

18

2 ×

2 × 3 ×

nextnextnextnext

The prime factors for 18 are…

2 × 3 × 3

next

© Math As A Second Language All Rights Reserved

27

3 ×

3 × 3 ×

nextnextnextnext

The prime factors for 27 are…

3 × 3 × 3

next

© Math As A Second Language All Rights Reserved

81

9 ×

3 × 3 ××

nextnextnextnext

The prime factors for 81 are…

3 × 3 × 3 × 3

nextnext

© Math As A Second Language All Rights Reserved

42

7 ×

7 × 3 ×

nextnextnextnext

The prime factors for 42 are…

7 × 3 × 2

next

© Math As A Second Language All Rights Reserved

54

6 ×

2 × 3 ××

nextnextnextnext

The prime factors for 54 are…

2 × 3 × 3 × 3

nextnext

© Math As A Second Language All Rights Reserved

72

9 ×

3 × 2 ×

nextnextnextnext

The prime factors for 40 are…

3 × 3 × 2 × 2 × 2

next

3 × 2 × 2

next

×

next

×

3 ×

© Math As A Second Language All Rights Reserved

45

5 ×

5 × 3 ×

nextnextnextnext

The prime factors for 45 are…

5 × 3 × 3

next

© Math As A Second Language All Rights Reserved

40

5 ×

5 × 2 ×

nextnextnextnext

The prime factors for 40 are…

5 × 2 × 2 × 2

next

5 × 2 × 2

next

×

next

© Math As A Second Language All Rights Reserved

60

6 ×

2 × 2 ××

nextnextnextnext

The prime factors for 54 are…

2 × 3 × 2 × 5

nextnext

48

6 ×

3 × 2 ×

nextnextnextnext

The prime factors for 40 are…

3 × 2 × 2 × 2 × 2

next

3 × 2 × 2

next

×

next

×

2 ×

© Math As A Second Language All Rights Reserved

63

7 ×

7 × 3 ×

nextnextnextnext

The prime factors for 45 are…

7 × 3 × 3

next

© Math As A Second Language All Rights Reserved