The answer could be exponential representation but, given the limited amount of information in the question, it is hard to be sure.
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To write repeated multiplication in an exponential notation, you should write the number that has to be multiplied as the base. Count the number of times that the number is used.
The factors of nine are one, three, and nine. A factor is a whole number that when multiplied by another number equals the number you are factoring. So, the repeated multiplication for nine is 3 times 3.
Base of a power
the whole reason is this: multiplication is adding to that number in groups and division is subtracting from a number in groups.
a power or exponent.