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Question: Answered & Verified by Expert
The number of zeros at the end of 100! is
MathematicsPermutation CombinationJEE Main
Options:
  • A 21
  • B 22
  • C 23
  • D 24
Solution:
1204 Upvotes Verified Answer
The correct answer is: 24
$\mathrm{E}_5(100 !)=\left[\frac{100}{5}\right]+\left[\frac{100}{25}\right]+\left[\frac{100}{125}\right]=20+4+0=24$

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