Math
Most natural numbers can be expressed as a sum of two or ore consecutive positive intergers. Find all natural numbers between 1,000 and 10,000 which cannot be expressed as a sum of tow or more consecutive positive intergers.
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The only two numbers which cannot be expressed this way are 1000 and 1001. This is because consecutive positive integers must begin with 1, and any two or more consecutive positive integers added together will result in a number larger than 1000 and 1001.
