Find the number of factors of 9600.

2023

Find the number of factors of 9600.

  1. A.

    46

  2. B.

    48

  3. C.

    42

  4. D.

    50

Attempted by 29 students.

Show answer & explanation

Correct answer: B

Step-by-Step Solution

To find the total number of factors for any integer, use its prime factorization.

  1. Perform Prime Factorization:

    • Break down 9600 into prime factors:

    • 9600 = 96 * 100

    • 96 = 32 * 3 = 2^5 * 3

    • 100 = 10 * 10 = (2 * 5) * (2 * 5) = 2^2 * 5^2

    • Combine them: 9600 = (2^5 * 3) * (2^2 * 5^2)

    • 9600 = 2^7 * 3^1 * 5^2

  2. Apply the Factor Counting Formula:

    • If a number is expressed as n = (p^a) * (q^b) * (r^c)..., the total number of factors is (a + 1) * (b + 1) * (c + 1)...

    • Here, the exponents are 7, 1, and 2.

    • Total factors = (7 + 1) * (1 + 1) * (2 + 1)

    • Total factors = 8 * 2 * 3

    • Total factors = 48.

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