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BECE Mathematics 2011 Paper
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© africaexams.com
Question : 13
Total: 40
Find the HCF of
3
3
×
5
2
and
3
2
×
5
4
.
3
2
×
5
2
3
3
×
5
2
3
2
×
5
4
3
5
×
5
6
Validate
Solution:
The highest common factor (HCF) is the product of each of the prime numbers in their lowest power.
HCF
=
3
2
×
5
2
Note: For HCF, lowest power and Least/Lowest Common Factor (LCM), highest power. So highest (HCF) is lowest and lowest (LCM) is highest.
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