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Jeffery Levy
Mathematics
30 September, 08:09
C) HCF of 900 and 243?
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Rebecca Cardenas
30 September, 08:19
0
'highest common factor'
It is 9.
If you divide both by 9:
100, 27
100 and 27 have no more common factors
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Tara Hardin
30 September, 08:26
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9
Step-by-step explanation:
This method uses only subtraction to find the HCF
• Subtract smaller number from larger number
• Repeat this until a common value is obtained
• The common value is the HCF
Given 900 and 243, then
900 - 243 = 657
657 - 243 = 414
414 - 243 = 171
243 - 171 = 72
171 - 72 = 99
99 - 72 = 27
72 - 27 = 45
45 - 27 = 18
27 - 18 = 9
18 - 9 = 9 ← common value of 9 obtained
Hence the HCF of 900 and 243 is 9
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