When multiplying exponents with the same base, we add the powers. This is given by the rule $a^m \times a^n = a^{m+n}$.
In this case, $a=7$, $m=13$, and $n=27$.
So, $7^{13} \times 7^{27} = 7^{13+27}$.
Step 2:
Calculate the sum of the exponents: $13 + 27 =
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