PrimeCalcPro

Mathematics

Perfect Number Checker

Is a number perfect abundant or deficient?

Perfect Number Checker

Number (≤ 100,000)
Known perfect numbers: 6, 28, 496, 8128, 33550336…

A perfect number equals the sum of its proper divisors (excluding itself). The first perfect numbers are 6, 28, 496, 8128. All known perfect numbers are even; it is unknown whether odd perfect numbers exist.

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