Is 184 a term of the AP 3, 7, 11, 15, ….?

The given AP is 3,7,11,15,……
Here, we have a = 3 and d = 7 – 3 = 4
Let the nth term of the given AP be 184. Then, we can write:

But, the number of terms cannot be a fraction.
Hence, 184 is not a term of the given AP.