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85248
Highest Common Factor
Description
Maths (Number) Mind Map on Highest Common Factor, created by abbylebus on 12/05/2013.
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abbylebus
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Created by
abbylebus
over 11 years ago
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Resource summary
Highest Common Factor
The highest FACTOR that 2 numbers have in common is called the highest common factor (HCF)
e.g find the HCF of 60 and 84:
60
2
30
2
15
3
THESE ARE PRIME NUMBERS.
5
84
2
42
2
21
3
7
THESE ARE PRIME NUMBERS.
60=2x2x3x5
Now circle the common factors. These are: 2x2x3=12
The HCF of 60 and 84=12
84=2x2x3x7
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