MasteryExams
Quantitative Aptitude • Number System & SimplificationHard

How many factors (divisors) does 2,700 have, including 1 and the number itself?

A. 34
B. 36✓ Correct Answer
C. 10
D. 7

💡 Solution & Explanation

Write the number as a product of primes: 2,700 = 2^2 × 3^3 × 5^2. A factor can use each prime from power 0 up to its full power, so the number of factors = (2 + 1) × (3 + 1) × (2 + 1) = 36. Multiplying (exponent + 1) for each prime is much faster than listing every factor.

🚩 Report a problem