diff --git a/quant_interview_questions.myco b/quant_interview_questions.myco
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@@ -28,7 +28,6 @@
 * What is the least multiple of 15 whose digits consist only of 1's and 0's?
 * Is 1027 a prime number?
 * Does the price of a call option increase when volatility increases?
-* What is the singles digit for 2^230?
 * In a poker game, players read opponents’ hands with 50% accuracy. Model the equilibrium bluffing frequency when raising all-in on a flush draw. Assume pot odds are 2:1.
 * Why might two bonds issued by the same company with the same coupon/maturity be trading at different prices?
 * The probability you'll see a falling star in the sky over the course of one hour is 0.44. What's the probability you'll see one over half an hour?