How it Works › Forums › Introductory Problems (AMC 8 Problems 10-20) › Unique Properties of Integers Introductory Problems Set 2 › Reply To: Unique Properties of Integers Introductory Problems Set 2
Great work Anton and Bhavya! Anton you receive 15 points and Bhavya you receive 20 points. However, Anton try to find a more efficient solution to problem 1. Also, try problem 4 as well.
Bhavya, your solution to number 4 is incorrect in the composite case. Note that 15 is composite yet it is still odd. Thus, not all composite numbers are even.