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Besides thirty itself, which number is also a factor of thirty?
AThe number 9
BThe number 7
CThe number 4
DThe number 1
Answer & Solution
Correct answer: D. The number 1
1. Thirty equals one times thirty.
2. Both parts of that product are factors.
3. Thus, 1 and 30 are also factors of 30.
4. So the answer is one.
_Source: NCERT Class 8 Mathematics, Ch 12 'Factorisation'_
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