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{{ printedBook.courseTrack.name }} {{ printedBook.name }} To calculate a power means to evaluate its value. For example is $2_{3}=8$ since it's a product with three twos as factors. Remember that any number raised to the power of $1$ is the base itself, and any non-zero number raised to the power of $0$ is $1.$ $2_{3}=84_{1}=474_{0}=1 $