1.4 Prime Factorization (BIM)

1.4 Prime Factorization

By Grace Fanshaw

Without dividing, how can you tell when a number is divisible by another number?
Sin dividir, ¿cómo puedes saber cuándo un número es divisible por otro número?

Video is in Spanish

Multiple Choice

Find the equivalent expression.

9 x 9 x 9 x 9 x 9

• 9⁵
• 9¹⁵
• 9 x 5
• 9 + 9 + 9 + 9+ 9

Multiple Choice

What does the ( E )in PEMDAS mean?

• experience
• exponents
• examples
• evidence

Prime VS Composite

-Have more than 2 factors
-All even numbers besides 2
-All numbers that end in 5 or 0
-Examples: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20

Composite Numbers

-Have only 2 factors: 1 and itself
-Examples: 2, 3, 5, 7, 11, 13, 17, 19

Prime Numbers

Multiple Choice

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.

Multiple Choice

the only factors prime numbers have are:

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

Multiple Choice

Which list has only prime numbers?

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

Categorize

Options (10)

3

7

13

23

49

6

90

14

Sort the following numbers into PRIME or COMPOSITE

Prime

Composite

Categorize

Options (4)

2*2*c*c*c can be written as 2² *c³

4*4*5*5 can be written as 2(4)*2(5)

c*c*c*c is the same as 4(c)

9²*8² is the same as 9*9*8*8

Put each statement into the correct category, based on whether it is TRUE or FALSE

True

False

Labelling

Label what should go where on your On Your Own homework

Drag labels to their correct position on the image

Assignment Questions and Answers

Assignment instructions

Doodles

Your name and block number

Assignment Name and Number

On Your Own

​1.4 Prime Factorization
Ms. Fanshaw Block: 2

Keep your assignment information at the top!

​Remember: IF YOU DON"T FINISH IN CLASS, IT IS NOW HOMEWORK