Q. 5 C5.0( 5 Votes )

# Write the number of factors of the following?

45

Answer :

45

Prime factors of 45 are = 5 × 3 × 3

= 5^{1} × 3^{2}

⇒ Now, number of factors can be written as n + 1 form

⇒ (1 + 1)(2 + 1) = 2 × 3 = 6

Hence, number of factors for 45 is 6

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