4 to the second power, also expressed as 4 squared, is calculated by multiplying 4 by itself. This means:
4 × 4 = 16.
So, 4 to the second power equals 16. When we think about squaring a number, we are essentially finding the area of a square where each side is the length of that number. In this case, a square with sides of 4 units would have an area of 16 square units.