Question

HCF of 16 and 18
HCF of 20 and 25 HCF of 10 and 12 HCF of 7 and 14

Answer 1

1-The factors of 16 are: 1, 2, 4, 8, 16

The factors of 18 are: 1, 2, 3, 6, 9, 18

HCF=2

2-The factors of 20 are: 1, 2, 4, 5, 10, 20

The factors of 25 are: 1, 5, 25

HCF=5

3-The factors of 10 are: 1, 2, 5, 10

The factors of 12 are: 1, 2, 3, 4, 6, 12

HCF=2

4-The factors of 7 are: 1, 7

The factors of 14 are: 1, 2, 7, 14

HCF=7

Answer 2

Answer:

Hi There!

Here's your answer!

HCF of 16 and 18 is 2.

The factors of 16 are: 1, 2, 4, 8, 16

The factors of 18 are: 1, 2, 3, 6, 9, 18

Then the greatest common factor is 2.

HCF of 20 and 25 is 5.

The factors of 20 are: 1, 2, 4, 5, 10, 20

The factors of 25 are: 1, 5, 25

Then the greatest common factor is 5.

HCF of 10 and 12 is 2.

The factors of 10 are: 1, 2, 5, 10

The factors of 12 are: 1, 2, 3, 4, 6, 12

Then the greatest common factor is 2.

HCF of 7 and 14 is 7.

The factors of 7 are: 1, 7

The factors of 14 are: 1, 2, 7, 14

Then the greatest common factor is 7.

I hope this helps you!

Step-by-step explanation: