Find the HCF of 70 and 120 - SS1 Mathematics The Real Number System Question
Find the HCF of \(70\) and \(120\)
| 2 | 70 | 2 | 120 | |
|---|---|---|---|---|
| 5 | 35 | 2 | 60 | |
| 7 | 7 | 2 | 30 | |
| 1 | 3 | 15 | ||
| 5 | 5 | |||
| 1 | ||||
Thus, \(70 = 2 \times 5 \times 7\),
\(120 = 2 \times 2 \times 2 \times 3 \times 5\)
Common factors are one set of \(2\) and \(5\).
Hence, the Highest Common Factor = \(2 \times 5 = 10\)
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