Dictionary Functions: Keys

Question

Concerning the following code:

What is the result of this code?
primes = {1: 2, 2: 3, 4: 7, 7:17}
print(primes[primes[4]])

I got the right answer, but I don't understand why. Without giving it away (or attempting not to), wouldn't the first "primes" be multiplied by the second "primes"? So, if it read "print(primes[primes[3]])" instead, wouldn't it be 7 * 7, or 49 for the final output?

Thanks in advance!

~M

Answer 1

primes[4] return the value 7. Now, primes [7] return the value 17.