The "100th Number" refers to the number that holds the position of one hundred in a sequence of natural numbers. In mathematics, natural numbers start from 1 and continue indefinitely. Therefore, the 100th number in this sequence is simply 100 itself. In various contexts, the number 100 can symbolize completeness or a milestone. For example, in education, scoring 100% on a test indicates perfect performance. Additionally, century in sports often refers to a player scoring 100 runs or points, marking a significant achievement in their career.