# data[].attributes.body
Login to your Padlet account (if you have already registered with your SST email address)
If not, remember to enter your name in the title of the first post you put up under your index number.

# data[].attributes.body
Follow the steps though we can already identify the HCF along the way.

Our Objective is to LEARN the Index Notation Method

Post a photo of your work so that we can check on our steps whether they are alright.

# data[].attributes.body
Nil

# data[].attributes.body
Nil

# data[].attributes.body
Im too lazy to take photo.

(a)

3 / 162, 225

3 / 54, 75

/18, 25

--------

HCF = 3x3 = 3^2

Answer : 3^2

(b)

3 / 63, 84, 231

7 / 21, 28, 77

/ 3, 4, 11

--------

HCF = 3x7 = 21

Answer : 21

# data[].attributes.body
162 = 2 x 3^4

225 = 3^2 x 5^2

HCF = 3 x 3 = 9

# data[].attributes.body
HCF between 162 and 225

2|162

3|81

3|27

3|9

3|3

1

3|225

3|75

5|25

5|5

1

162 = 2^1 x 3^4

225 = 3^2 x 5^2

Answer = 3^2 (9)

# data[].attributes.body
3|162, 225

3|54, 75

18, 25

3^2=9

# data[].attributes.body
Im lazy so im didnt take photo

Q2

2/162 3/225 162=2x3^4

3/81 3/75 225=3^2x5^2

3/27 5/25

3/9 5/5

3/3 1 HCF=3^2

1 =9

Q3

3/63 2/84 3/231 63=3^2x7

3/21 2/42 7/77 84=2^2x3x7

7/7 3/21 11/11 231=3x7x11

1 7/7 1

1 HCF=3x7

=21