Highest Common Factor

abbylebus
Mind Map by , created over 6 years ago

Maths (Number) Mind Map on Highest Common Factor, created by abbylebus on 05/12/2013.

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abbylebus
Created by abbylebus over 6 years ago
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Highest Common Factor
1 The highest FACTOR that 2 numbers have in common is called the highest common factor (HCF)
2 e.g find the HCF of 60 and 84:
2.1 60
2.1.1 2
2.1.1.1
2.1.2 30
2.1.2.1 2
2.1.2.1.1
2.1.2.2 15
2.1.2.2.1 3
2.1.2.2.1.1 THESE ARE PRIME NUMBERS.
2.1.2.2.2 5
2.2 84
2.2.1 2
2.2.1.1
2.2.2 42
2.2.2.1 2
2.2.2.1.1
2.2.2.2 21
2.2.2.2.1 3
2.2.2.2.1.1
2.2.2.2.2 7
2.2.2.2.2.1 THESE ARE PRIME NUMBERS.
2.3 60=2x2x3x5
2.3.1 Now circle the common factors. These are: 2x2x3=12
2.3.1.1 The HCF of 60 and 84=12
2.4 84=2x2x3x7
2.4.1

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