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## Homework Statement

How many flip flops are in a 16bit counter? its actually an interview question, not homework per se.

## Homework Equations

none

## The Attempt at a Solution

I thought it was 4 since we have 2 inputs from 4 flip flops giving us 2^4 = 16 ?

however i'm told that its essentially just made up with 2 flip flops. How is this possible?