Free GRE Practice Question

Question 1 of 1
ID: GRE-QCQ-005
Section: GRE Quantitative Reasoning - Comparison
Topic: Number Properties
Difficulty level: Hard

Practice Mode: Single selected Question » Back to Overview

A positive integer \(x\) is a perfect number if the sum of all the factors of \(x\), including \(1\) and \(x\) itself, is equal to \(2x\). The number \(28\) is a perfect number.

Quantity A: The sum of the reciprocals of all the factors of \(28\)

Quantity B: \(2\)

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