Upcoming lesson · 53 of 98
AMC 8
Legendre's Formula
This lesson is part of the course plan. Its explanations and practice are being prepared.
What this lesson will cover
- State Legendre's formula for the exponent of a prime in n!
- Compute the exponent of a given prime in a factorial
- Apply the formula to trailing-zero and divisibility questions
40 minutes planned · Difficulty 6/10