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What Is The Unit Digit Of 3?
31 = 3, 32 = 9, 33 = 27 & 34 = 81 and after that it starts repeating. So, the cyclicity of 3 has 4 different numbers 3, 9, 7, 1. 7 and 8 follow similar logic. So these four digits i.e. 2, 3, 7 and 8 have a unit digit cyclicity of four steps.
Finding Unit Digit Of Exponent
The
Units Digit of an exponential Part 1
Finding the
The unit digit of 1! + 2! + 3! + … + 99!
This is a good question for many competitive exams which may seem easy at first but if you do not know the correct approach for …
