How many positive divisors does 48 have?
Answer and explanation
Correct answer: A. 10
- Step 1: Prime factorisation: .
- Step 2: The number of divisors is .
Answer
10.
Why not the others: 5: it counts prime factors with repetition, not divisors. 4: it uses the number of distinct primes only.
Practise more Properties of Integers.
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