Stirling's Quick Estimate - Quant Trader Interview Question
Difficulty: Hard
Category: Mental Math & Estimation
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Topics: mental-math, estimation, stirling-approximation, logarithms
Problem Description
You're interviewing for a trading role, and the interviewer asks you to quickly estimate the order of magnitude of a large factorial. Specifically, use Stirling's approximation to estimate $log_{10}(20!)$.
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