When faced with a complex problem like finding the unit digit of
To do this, we divide the exponent by 4. If the exponent is exactly divisible by 4 (as 372 is, since 124372
In the realm of arithmetic and number theory, the ability to determine the unit digit (the last digit) of a large number raised to a significant power is a fundamental skill. This process relies not on brute-force calculation—which would be impossible for numbers like 124372124372 When faced with a complex problem like finding