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Continuing, 42 = 35 times 1 plus 7, then 35 = 7 times 5 plus 0. The largest common divisor is:
A9
B7
C5
D3
Answer & Solution
Correct answer: B. 7
1. The last non-zero remainder is the answer.
2. That value is 7.
3. The highest common factor is 7.
_Source: NCERT Class 10 Mathematics, Chapter 1, Real Numbers._
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