How to find the sum of all the multiples of 3 or 5 below 1000 in Python?

Question

Not sure if I should\'ve posted this on math.stackexchange instead, but it includes more programming so I posted it here.

The question seems really simple, but I\'ve

Answer 1

Here is the code:

count = 1000
m = [3, 5, 3*5]
result = 0
Sum = 0
for j in m:
    result = 0
    for i in range(count):
        if i*j < 1000:
            result = result + i*j
        elif i == (count - 1):
            if j < 15:
                Sum = result + Sum
            elif j == 15:
                Sum = Sum - result
                print(Sum)