Lexington student wins national math contest

Posted: 05/11/13 at 8:05 pm EDT

BOSTON (AP) -- A Lexington, Mass., middle school student has won a national math competition in Washington with the right answer to a question about integers.

Alec Sun won the 2013 Raytheon MATHCOUNTS National Competition on Friday by answering in less than 45 seconds what the greatest integer is that must be a factor of the sum of any four consecutive positive odd integers. He correctly answered eight.

An integer is a positive or negative number that does not include fractions or decimals.

The eighth-grader from Jonas Clarke Middle School competed among 224 middle school students.

In the team competition, Massachusetts won the National Team Championship for the second year in a row.

Sun won an $8,000 college scholarship and a trip to U.S. Space Camp in Huntsville, Ala.

Have a story idea or news tip for 7NEWS?

Email: newstips@cw56.com, or call us at 1-800-280-TIPS.