can someone explain to me why the result code of the exercise "sum of consecutive numbers" in Python for Beginners?

Question

This is the code:
N = int(input())
nums = int(N*(N+1)/2)
print(nums)

I looked for it because I didn't understand it, and i still don't get it.

Answer 1

It's a maths formulae for finding sum of n consecutive numbers is n*(n+1)/2

Answer 2

I got it now, thanks 🤝