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Perfect number facts for kids

Kids Encyclopedia Facts
Perfect number Cuisenaire rods 6
Illustration of the perfect number status of the number 6

A number is called a perfect number if by adding all the positive divisors of the number (except itself), the result is the number itself.

6 is the first perfect number. Its divisors (other than the number itself: 6) are 1, 2, and 3 and 1 + 2 + 3 equals 6. The next perfect number is 28, since 1 + 2 + 4 + 7 + 14 = 28.

The first four perfect numbers are 6, 28, 496 and 8128.

See also

Kids robot.svg In Spanish: Número perfecto para niños

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