To find the numerical equivalent of 7² x 7³, we first need to simplify the expression.
7² means 7 raised to the power of 2, which is 7 x 7 = 49.
7³ means 7 raised to the power of 3, which is 7 x 7 x 7 = 343.
Now, we can multiply these two numbers together: 49 x 343 = 16,807.
Therefore, the numerical equivalent of 7² x 7³ is 16,807.