Frequent Questions about our Solver
How do you do put it together?
Answer provided by our tutors
Your entry is correct other than a blank line (but the solver is ignoring the blank line). Note that '9' is expressed as '3^2'. The representation of a number by its prime factorization is standard with the software and its use can be viewed as a "best practice". For example, when working with fractions it is not immediately obvious that "91/28" has any cancellations at all, while the prime-factored version, "(7 * 13) / (2*2 * 7)", has an obvious cancellation of sevens.
Finally, clicking on a particular solution step allows you to review the logic which is employed:
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