Ones Digit and Modular Arithmetic
What is the ones digit of the number (23)^23?© SolutionLibrary Inc. solutionlibary.com 9836dcf9d7 https://solutionlibrary.com/math/algebra/ones-digit-and-modular-arithmetic-1qf
... ones digit.
Also taking the 23rd power of 23 is equal to taking the 23rd power of 3 because 23 is equal to three in (mod10).
So we have to find which power ...