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Find the number of trailing zeros in 124!

This question was previously asked in
RPF SI (2018) Official Paper (Held On: 24 Dec, 2018 Shift 1)
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  1. 28
  2. 26
  3. 24
  4. 30

Answer (Detailed Solution Below)

Option 1 : 28
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Detailed Solution

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Given:

Find the number of trailing zeros in 124!

Formula Used:

Number of trailing zeros in n! =

Calculation:

n = 124

Number of trailing zeros =

⇒

⇒

⇒

Number of trailing zeros = 24 + 4 + 0 = 28

The number of trailing zeros in 124! is 28.

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