Question

tware on the smart board in class to do Exercise
1. Find the common factors of the following numbers. Then find their HC
(c) 36,60
(a) 20.45
ig) 72,48
(e) 30.50
2. Find the HCF of the following numbers by prime factorization
(b) 16,56
( 40.60
(d) 42.70
(h) 25.90​

Answer 1

Actually I don't know the answer of Q1 But I have done Q2

Hope it helps you please mark me as Brainlest

Answer 2

Answer:

c) The HCF of 36 and 60 is 12

a) The HCF of 20 and 45 is 5

ig) The HCF of 72 and 48 is 24

e) The HCF of 30 and 50 is 10

b)The HCF of 16 and 56 is 8

Step-by-step explanation:

1)

c) #1 Write down all of the factors for all of the numbers:

• The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36

• The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

#2 List all common factors: 1, 2, 3, 4, 6, 12

#3 The Highest Common Factor is the largest of these numbers. For 36 and 60, it is: 12

a) #1 Write down all of the factors for all of the numbers:

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

• The factors of 45 are: 1, 3, 5, 9, 15, 45

#2 List all common factors: 1, 5

#3 The Highest Common Factor is the largest of these numbers. For 20 and 45, it is: 5

ig) #1 Write down all of the factors for all of the numbers:

• The factors of 72 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

• The factors of 48 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

#2 List all common factors: 1, 2, 3, 4, 6, 8, 12, 24

#3 The Greatest Common Factor is the largest of these numbers. For 72 and 48, it is: 24

e) #1 Write down all of the factors for all of the numbers:

• The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

• The factors of 50 are: 1, 2, 5, 10, 25, 50

#2 List all common factors: 1, 2, 5, 10

#3 The Greatest Common Factor is the largest of these numbers. For 30 and 50, it is: 10

2)

b) #1 Write down all of the numbers as a product of their prime factors:

• The prime factors of 16 are: 2, 2, 2, 2

• The prime factors of 56 are: 2, 2, 2, 7

#2 List of all the common prime factors: 2, 2, 2

#3 Find the product of all common prime factors: 8

#4 The Highest Common Factor is the result of the previous step. For 16, and 56 is: 8

others try to solve by youself