Assuming the problem refers to the sum of the first 100 natural numbers (a common classic problem):

The sum of the series (1 + 2 + 3 + \dots + n) is given by the formula:
[S = \frac{n(n+1)}{2}]

For (n = 100):
[S = \frac{100 \times 101}{2} = 50 \times 101 = 5050]

Answer: 5050

作者声明:本文包含人工智能生成内容。