Which number is a factor of every number?
AThe number 1
BThe number 9
CThe number 7
DThe number 4
Answer & Solution
Correct answer: A. The number 1
1. Every number divides by it exactly.
2. It is the smallest positive whole number.
3. You will notice that 1 is a factor of any number.
4. So the answer is one.
_Source: NCERT Class 8 Mathematics, Ch 12 'Factorisation'_
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